I'm currently 24 as well. This is basically a yes and no type of answer...
I say no because I still have a large interest in kids' cartoons. Being a legal adult, I should really get into more mature stuff, but for some reason, the kid in me wants me to watch the shows I grew up with plus more for nostalgia purposes. Heck, my major guilty pleasure has usually been
Blue's Clues for crying out loud. I don't even have kids, let alone a relationship with anyone, so there really isn't a good reason to continue watching these shows. Are they good stress relievers? Probably. Maybe that's why I still have an interest in them. I'm also heavily into "dad rock" and don't follow current trends in general. Out of the current 19,262 songs in my library, only 168 of them were released in the past decade. That pretty much sums up my music interests. I also have a large interest in old and retro things, so you could say I know more about "old stuff" than ordinary people my age.
Meanwhile, I say yes as I'm up-to-date on tech. That's pretty much it!
All in all, my mind still has that kid mentality, but there are adult themes mixed in. I'd love to be a kid again watching the old cartoons; those were simpler times.