There's a spectrum of possible behaviors here, both on the part of the sender and the receiver. As someone who is interested in things that someone else isn't interested in, it's important to regulate how much time you spend talking about those topics. For example, it's fine to bring up a videogame with non-gamers once in a while, but if your every conversation is about that, it's going to annoy the people listening to you, even if they are the most generous conversation partners in the world. Only get a seven year old talking about their favorite Nintendo game to see how wearing that can be.
They don’t really have to understand it, just get the general idea.