"Believing in God doesn't mean having anything to do with organised religion"

"If people didn't believe in God there'd be no place for any religions"

Not quotes, but my summery of two views that have been expressed a few times in this thread, and similar ones. But I think there's something wrong with both.

The thing is, we humans are social creatures. We aren't just individuals. If we believe in God there's a lot to be said for expressing that in some kind of shared activity. As is the case if we go in for playing music.

And even where people don't believe in God communal religious activity can also be a way of providing them with something they find satisfies needs they possess.

And in fact there are religious traditions which are essentially "God free", such as some forms of Buddhism.