That's not to say that you HAVE to talk about your religion if you don't want to. You are entitled to privacy! And you have the right to choose how much you disclose about your religion, and to whom, and in what context.
But don't let people tell you that you can't/shouldn't have a public side to your religion, if you want one.
@alpine_thistle that makes me think that talking about religion is a lot like talking about either sexuality, or sex in general. Although I can't decide which one is more appropriate comparison, and I feel like there's a some difference.
Either way, there's a component of different people having different comfort levels when talking about it, even when they agree that the topic itself is not negative or shameful in itself.
The Conventicle of the Lesser Occult Institute