>Is it strange to like something at a specific age?
Gee man, that sounds fucked up, liking things is not very normal, especially at a specific age. Seriously though, if your question is more like "Is it SOCIALLY acceptable to like pokemon in adulthood?" I'd say, these days, you can "get away with" a lot of niche/nerd interests than say, 20 or so years ago. The line between having "nerd hobbies" at a ripe age and being a fucking loser is how you portrait it to others. If discussion is steered towards one another's interests and the people you're discussing with arent disgusting normies then yeah, its fine to say "i like pokemon" and it will be met with decent reception. This is no different than say that you like watching capeshit or collecting stamps or whatever but if you do run into people that judge you based on what you do in your free time, then its said people who're at fault here.