When Cartoon Network started to show Cartoons that no longer appealed to me, I stopped watching Cartoons on any channel altogether because I knew that it was probably a sign of me maturing.
Children like Ben 10 and all that shit, because it was aimed towards them.
I'm not really going to look behind because 10 years ago, if you watched Dexter's lab as a 20 year old, you probably didn't like it. Funny story though, I didn't like Cow & Chicken when I was younger but now I LOVE it. It's so hilarious.