There are so many situations that we encounter with our children where they meet the unexpected. Here’s an old man who walks with a cane, here’s a family wearing traditional clothing (Amish, Hasidic, Muslim), here’s two men holding hands, here’s a lady who looks like a man or is it a woman, here’s a deaf person, here’s a whole bunch of people who don’t look anything like you, here’s someone who looks just like you but is nothing like you.
I’m glad my children got to see and experience as much as possible, and that cartoons were only the tiniest part of that. Although my daughter and I tried sushi for the first time because of an episode of “Doug.”
I’d say that if you don’t want your children to experience these things, you shouldn’t let them watch any television shows unsupervised. I think the burden should be on you, as that type of parent.