It depends on your personal meaning of 'valuable', I think some movies pandering to kids are pretty rad, like The Little Prince or most of Don Bluth's movies. Animation in general holds a lot of value to me, even as a kid I treated my 'The Last Unicorn' tape like it was the most precious thing ever. Morals though? Nah, some of those exceptional types might get them, but most kids probably won't comprehend a thing or care... the young ones at least. That stuff always felt more for the parents, if they don't see a kids movie with lessons it's a bad movie.
Sure, lessons can be great, but it'd be nice to have more kids media with story and characters being more important than lessons. Hayao Miyazaki's movies have lesson and morals, and his movies are effing amazing because it's about the story and characters first.