Waterford mother-of-five Lynda O'Shea experienced first-hand the difference between sending a child to school at age four and age five.
Lynda, whose children range in age from 11 to 23 years, sent her youngest son and daughter to school at age five, after starting the older three children at age four.
"I started three of them in school at the age of four and I felt that they struggled because they were not sufficiently mature," says Lynda, who is the spokesperson for the National Parents' Council Post Primary.
Looking back, she feels the work was probably a bit too advanced:
"I think I started them too early. They were not mature enough to start school at four.
"I think they'd have been better off if I had sent them around the age of five. I sent my youngest girl and youngest boy to school at five and they really blossomed."