Youchip, as long as it makes them happy and they don't hurt anyone by doing it - then why the hell not? It's their life and if they're going to regret their choices later in life, they won't have anyone other to blame than themselves. By the same logic you can tell that priests or nuns are limiting themselves. In both cases it's devotion and if you'd ask me, it's more silly to devote oneself into big G in the sky who might be nonexistant than to My Little Pony. And I believe that the first bunch made more wrong then latter, if you'd ask me.
Also, for the record - I don't even like the MLP show.
Also, for the record - I don't even like the MLP show.