I think since it is You saying you think that (especially)
Pokemon is childish, you should take this
as a cue, and consider adding another hobby or two, now that you are an adult.
Upon reflection, a women interested in you might not be harshly judgmental if you sometimes watch spongebob or do pokemon, however, they will be impressed with you as a potential partner, if you choose to learn a hobby, and get really good at it.
Hobbies are often a conversation starter, ie.