No way! I don't watch that trash & I'm 34. Kids are to just too impressionable, & they tend to reflect what they see & hear. I wish now that I had sheilded my kids a lot more.
I think it depends on the child. If they are mature enough to handle it then sure, they know right from wrong. If they aren't mature enough then they shouldn't.
I do not think so! This cartoon like many others is considered "adult entertainment", I do watch the show, and do not consider it's content appropriate for children. It has many sexual and drug references and connotations that are not suitable for children. If you have not noticed there is a warning before the show starts that indicates this.
It all depends on personal opinion tbh. If you are offended by that kind of stuff then it's at your disgression to choose not to watch it. Personally I would say 16+ for the show, due to some elements.