Lynn Ruane (Independent) | Oireachtas source

In reality, that margin of error is quite small, unless you are in a shared room and you might need some safeguards in place. Where the margin of error does not matter is in the cases that have been put forward of the 15-year-old or 16-year-old. The margin of error is two years, so he or she is still under age. It only really comes into play as a questionable metric if we are looking at 17-year-olds.