(12 Jul 2016, 8:37 pm)Jimmi wrote I know people around my sort of age (22) who may be into Pokemon, certainly know some who played with Yu-Gi-Oh cards. I'm not intrested in either of these myself but there's nothing wrong with anyone who does like any of these types of things.
Suppose at that age, they have grown up with it. It has been out as long as they have been alive, with the phenomenon growing and developing over the years.
Some move on to new things, others stick with what they like - much like any hobby or interest really.