I'd be about 67. I really don't know. No one knows what will happen in 50 years.
I've actually been starting to get off of anime lately. I'm getting into more hobbies. I like sports (mostly American football right now), cars, video games, math (nerd :B ), science (mega-nerd :BB ), music, art, technology, ect.
I can almost be certain that I won't like anime that much in 50 years. I'll be married, have kids, grandkids, and if the same happens with me as my grandma, great grandkids.
I plan to have a career in medicine, I can't let something like cartoons distract me. It pains me to say it, but I might even have to give up Spider-Man and my dream of conducting one of my friends funerals (I want strippers, a disco ball, and a clown at that funeral biggrin !) if I wanna get into med school!
Well, only God knows if I'll even be alive in 50 years. I hope I am. If I am, then I doubt it. Anime is starting to suck. If it keeps going downhill then I might join an "anti-anime" movement.
All in all, it's only a hobby and if I don't like it in the future then I just plain don't. I might give it up as soon as I have kids though. I don't want my kids growing up calling themselves "otaku" or having my daughter liking yaoi. I also don't want my son looking as hentai. I'm going to raise my son the way my mom does with my brother: I don't care how much porn that kid will look at, as long as he doesn't get anyone pregnant.
Back to the topic, I don't know. biggrin