No, all animes are for adults, some are for teens, and some are for chldren, why, cuz you wouldnt see some little kid watching hentai or something like Hellsing.
I quite agree. You can never be to old for anime but there are certain types for certian ages groups. You wouldn't want a Kindergartener scarred for life if they see hentai do you?
Putting an age limit on anime is saying you never liked it at all, if you grow up to dislike it, or, dare I say, hate it... you never liked it in the first place, I'm going to like anime as long as I live