Again, as mentioned elsewhere, I find this notion utterly bizarre.
I genuinely couldn't tell you the religion of any of my mates, not one single one of them, it's never come up in any sort of casual conversation. I could tell you their sexuality cause pointing out who you find attractive on a night out is 'normal and, of course , many of them have partners. Football is just a given cause that's the sort of thing folk naturally talk about. In fact I could tell you a great deal about all of them but Religion !? Naw !!