I don't know many other college students who still like Pokemon. There was this one girl in my Japanese class who was really into it, but she was the overbearing annoying ultra-fangirl type who was only taking Japanese so she could brag to all her other fangirl friends that she knew what they were saying in her Naruto fansubs. The type of person who's in their mid 20's but still acts like they're 14.
A couple of my friends from that class though would talk about the first gen. games every once in awhile, except they were reminiscing, not genuinely still interested in it. We reminisced about a lot of cool stuff we liked as kids, like Teenage Mutant Ninja Turtles, and other cool things from the 90's.