My family is very familiar with my love for Pokemon, especially considering that, for a long period of my life, I was way more obsessed with it than I am now. My mom and stepdad went to see Detective Pikachu with me even though they don't know Pokemon, which I think is awesome (especially considering that I'd only actually asked my mom!) They legitimately enjoyed it. It was really nice to be able to talk about all our questions and likes and dislikes from the movie in the car afterwards.
Me and my mom talk a lot, and honestly, I love it when I can tell her about something from Pokemon that she doesn't know. c: (Side note, she loves Yamper as much as I do.)
...Also, not a friend, but I once explained the entire Necrozma storyline from Ultra Sun & Moon to my therapist. :x It wasn't as unprofessional as it sounds, okay? It was to help me practice talking, basically. Anyway, she said it sounded pretty intense, and made her think of a science fiction version of Greek, etc. mythology.