I wouldn't. As a teenager, I would have knocked Protestant and Catholic heads together. As far as I was concerned, they were all Christians and I didn't understand why they hated each other so much. As far as I was concerned, we outgrew all that nonsense hundreds of years ago. Mind you, it helps to understand why Sunni and Shia Muslims hate each other.
BTW I was born and bred on Merseyside. Many of my friends were Irish (from both sides of the border) and I lived through the fear of the troubles, worried sick every time I walked through Liverpool town centre.