My mom never said anything, except for asking me a million times what a pokeball is. Despite that, every time I say something about pokemon, she gives me this look that says something like: "you should be doing something more productive, you should be cleaning the house" (she truly believes that there are only three productive things I can do: study, work and clean the house...).
My father used to stop listening what I was saying after the word "pokemon". I really have no idea what he thinks, but I can assume, because of his actions, that he thinks I'm weird, have mental issues and I'm some kind of monster, and me playing pokemon is just another "symptom" of that.
My little brother started playing pokemon, because of me, a few months ago... He really liked it, but I think that a big part of it was because he felt closer to me. Unfortunately, as my father is an asshole, I haven't seen him or talk to him for months... I don't think he plays anymore.