Came to say this. My grandmother told me how scandalous it was when that line was in the movie.

Edit: On tv, Bart Simpson saying “Eat my shorts” was pretty big. Just like males/fathers are now portrayed as buffoons, I think prior to that kids in tv were portrayed as smart alecs to parents with no repercussions and a nice laugh track to let us know it was funny instead of unacceptable. Slippery slope.