I went to a GAA school, if you wanted to play rugby you had to join the rugby club and do it outside school hours and then the school wouldn't let you play GAA for the school, although I think would be allowed compete in athletics stuff. But there was no rugby school, you just joined the rugby club if you wanted to play rugby and it wasn't a class thing as far as I saw. Is "rugby is for rich kids" just a Dublin thing?
Think there’s a strong association with fee paying schools all over Ireland (the exception being in Limerick really) - that said there were two rugby clubs in Laois, neither of which had posh associations