I went to a caltholic high school(only left 4yrs ago, so pretty recent) We had catholics, anglicans, non-baptised students. i even had a friend who was buddhist there. They first took people who were from a catholic primary school, then people who had siblings at the school, then catholics, then non-catholics. The only thing that erked me though was if you weren't catholic they really pushed it onto you. Everyone had to study religion as a subject and if you were catholic they worked on you the hardest which i think is a bit wrong but anyway. You also were not allowed to say that you weren't catholic because it 'looked bad' WT?