Britain's King Charles is determined to make the monarchy more popular under his reign. The plans for the coronation show a desire for a more democratic and modern image.

A slimmed-down ceremony means some aristocrats will miss out, but space is being reserved for community workers.

A female bishop will be taking part in the ceremony for the first time and the music of Andrew Lloyd Webber will feature along with Handel. The oil used to anoint the King will be vegan.

And in a break with historical precedent, the King will be greeted on entering his own coronation in Westminster Cathedral by a 14-year-old boy - a member of the royal choir. It has been seen as a commitment for the inclusion of young people.

King Charles has talked for many years about his concern for the future for the country's children and grandchildren.

"That's what gets me going," he told a recent BBC documentary.

However, it is also true that monarchy needs to win over younger people among whom the decline in popularity is particularly noticeable.

Only 14% of those under 35 years of age thought the monarchy was "very important" according to a recent study of polls by Professor John Curtice, published by the UK In A Changing Europe (UKICE) think tank.

In fact, support for Britain becoming a republic was 38% among that age group not far behind the 43% of their peers who wanted to keep the monarchy.

Streets decorated with UK flags for King Charles' coronation ceremony

Overall, a changing society and the glare of publicity in recent years has eroded support for the monarchy. In 2022, only 55% of British people said they believed that the monarchy is good for Britain compared to 88% in 1969.

Professor Curtice summed it up by saying "the monarchy may look secure for now, but the foundations of its public support need some reinforcement".

There was also a warning from the think tank Civitas that the royal family was in danger of losing its relevance. It found a 40% drop in the number of royal public engagements being carried out between 2014 and 2022.

The pomp and ceremony of royal occasions - like Charles' marriage to Lady Diana - have traditionally given a boost to the royal family's popularity.

However there has been a run of these occasions with Queen Elizabeth's funeral, her Platinum Jubilee celebrations and Prince Philip's funeral all taking place within a period of just over two years.

Then there has been the scandal over Prince Andrew. This was followed by Prince Harry's public criticism, his book and a Netflix show coming out not long after another series of The Crown was aired.

Some people are talking about 'Royal fatigue'.

Individual local authorities in the southeast and northwest are reporting a drop in the number of applications for coronation street parties of between 40% and 60% compared to the Platinum Jubilee.

People camping out to ensure they get a good view of the King

To make the coronation more relevant, King Charles and his advisers in Buckingham Palace are trying to update some of the centuries-old ceremony.

The theme of the ceremony is 'Called To Serve' echoing the commitment to public service shown by the late Queen Elizabeth - who was the most popular of the royals.

There was an invite to the population of the United Kingdom and realms of the commonwealth to join in a 'Homage of the People'.

Gatherings of people will be invited to swear aloud their allegiance to the King during the ceremony. However, this idea - apparently from Archbishop Justin Welby - has proven to be unpopular.

The biggest innovation is the inclusion of other faiths in the service.

The coronation is fundamentally a religious ceremony during which King Charles is anointed with oils from the Mount of Olives in Jerusalem.

It is conducted behind a screen as it's the most sacred part of the ceremony. This tradition goes back to a time when monarchs were believed to inherit their authority directly from God and to possess the divine right of kings.

It underlines the fact that the Church of England continues to hold a constitutionally powerful position as the established church.

This remains the fact despite dwindling congregation numbers as pointed out by theological commentator Catherine Pepinster in the UKICE study.

It is estimated that there are only one million people attending Anglican church services in Britain out of a total population of 69 million.

The proportion of those who identify as being a member of any Christian faith has dropped to a minority - 46% in the last census.

King Charles famously suggested back in 1994 that he should be a defender of faith rather than 'Defender of The Faith' to reflect the religious diversity of modern Britain.

However, he later appeared to backtrack and during his public address following the death of his mother reaffirmed "the sovereign's particular relationship and responsibility towards the Church of England".

Moves to make the ceremony more religiously diverse came up against the barriers of Church of England canonical law which does not allow non-Christian prayers in their churches.

The Archbishop of Canterbury, Justin Welby, denied reports of disagreements between Church of England bishops and Buckingham Palace over this issue.

So, while Prime Minister Rishi Sunak who is a Hindu will be giving a reading at the ceremony, it will be from the bible.

And while the procession into the cathedral will include leaders from other religions such as Buddhism, Hinduism, Islam and Judaism they will not be giving prayers or blessings.

However, for the first time ever the head of the Catholic church in Britain - Cardinal Vincent Nichols - will join in blessings at the end of the service along with other Christian leaders including the Greek Orthodox Archbishop.

Orthodox Jews wear a Tefillin and bless the King on The Mall ahead of the coronation

This will happen after King Charles swears to uphold the Protestant religion, a tradition that dates back to the 17th century and a time of religious wars in Europe.

In fact, the oath at coronation used to be explicitly anti-Catholic. Up until 1910, the new monarch would swear that Catholic belief was false and that its practices were superstitious and idolatrous.

There has been speculation that King Charles would add something to the oath to make it more ecumenical, but this can only be done by an act of parliament.

The biggest and most fundamental change to the ceremony would be if King Charles makes an additional pledge somewhere in the service to be a protector of faith in general.

The coronation is also a chance to reinforce bonds between commonwealth countries. This is against the backdrop of both Jamaica and Australia making moves towards becoming republics.

King Charles has been making friendly overtures to Ireland for some time and visited the country with Queen Consort Camilla a number of times in recent years.

For the first time, Irish will be heard during the service, included in the hymn after the coronation sermon along with what are described as the other "traditional languages of the British Isles" - English, Welsh and Scots Gaelic.

King Charles greeting Sinn Féin's Michelle O'Neill last September

One of the musical pieces was composed by Tarik O'Regan, who is described as being of Arab and Irish heritage and who has previously composed a musical interpretation of an ancient Irish manuscript.

The most powerful symbol of all will be the sight of Sinn Féin's Michelle O'Neill and Alex Maskey attending as invited guests which sends a powerful message of reconciliation.

It is widely accepted that Queen Elizabeth II proved how important the crown could be when it was used to promote a historical peace settlement. King Charles will want to continue to prove its relevance.

It is a fine balancing act to make the royalty move with the times, while still retaining the tradition and continuity that makes it so appealing in the first place.

But King Charles is obviously determined to try. He does not intend to let the institution go into terminal decline on his watch.