Hey Rora! Long time no see.
Anyway, I feel similar. Rping doesn't feel the same for me anymore like it did when I was younger. I think anyone can rp regardless of age but most people naturally end up growing out of things they used to enjoy when they were younger for whatever reason. Plus as you get older, you just come into things that take precedence over a hobby.
My own interest in rping in general has been declining as the years pass. I've even talked about this very subject with a friend awhile back and how I feel like I'm getting closer to just being done with it all together.
I do like making characters, I do like thinking up of plots and seeing where it goes, but it gets harder to keep up the same energy at times when you get older. I think it's especially worse for the rping community to keep it as a hobby because these types of things require a lot of build-up and then real life gets in the way and suddenly you, or your rp partner can't post as often as you'd like. And when someone
can post, the other person might now be in a situation where they can't post for awhile which can really kill interest in continuing plots if you aren't close with the person.
Compare it to something like drawing or writing fanfics where you can stop anytime you want and easily pick it back up again. Rping just doesn't have that luxury, which is another reason why I find myself slowly getting disinterested in picking it back up whenever I go on a hiatus. I may have strong interest in something now, but I know that I may not feel the same in a few months which prevents me from joining sites all together. I don't want to leave people hanging.
But what makes me come back each time is nostalgia. I miss that feeling I had when I was younger. I want to experience the same fun I had but again, it's just harder because now that I'm older. To me, rping is like that one friend in high school. You like the person. You have great memories with the person. So, you decide to catch up with them after a while but then find out you just don't have that same "click" anymore. So now, do you try and find a way to relate to the person and rekindle the relationship or is it just easier to move on to focus on someone else you click with a lot more?
Sorry for the ramble but I have a lot of thoughts on this and just wanted to get it out.