It's a good thing here in Queensland that there is no sectarianism. Even catholic schools teach 'Study of Religions' ie study of all the main religions. I know, because my eldest son teaches this to 15-18 year olds as well as History and English. He has taken his students to mosques, synagogues, anglican churches, orthodox churches and Buddhist celebrations among other places. I believe this subject is very good for preventing trouble later in their lives.
The only real sectarianism or tribalism we have in this State concerns sport, but in spite of our sporting-mad reputation, more people go to public libraries on any given weekend, than sporting fixtures.
They have these inter-state rugby league matches once a year (I think) called 'state of origin'. The Queensland colour is maroon (which they inexplicably pronounce marone) and their main rival, NSW, is blue, so you might get sniffed at for wearing blue on the train on a game night, but that's about the extend of it.