The Road Safety Authority has said age should not be a barrier to driving, and that ability should be the main criteria in assessing a person's fitness to drive.
However, it said age does determine the term of the licence people can apply for here.
The Duke of Edinburgh's car crash at the age of 97 has prompted debate around the safe age of drivers.
Once a driver turns 70, their licence must be renewed once every three years, or at the discretion of their GP.
The RSA said there are 223,821 licensed drivers in Ireland between the age of 70 and 79, and 73,091 over the age of 80.