My mom also won't let me watch Chowder, Adventure Time (I think she straight up hates it), Regular Show, We Bare Bears, Steven Universe, and some others that I can't remember.
During the summer she finally let me watch The Grim Adventures of Billy & Mandy
...Ohhh, is THAT why your franchises are so obscure? ...That's a little strange, considering the tameness of most of them, but I suppose I know nothing
We Bare Bears!?!?!?! I can KIND OF understand some of those, as AT and RS can get pretty dark or disgusting, same goes for Chowder. But WBB!? What's up with that!?