The Brothers Grimm didn’t write anything. They collected German folk tales. Nor did they intend them for children. That was the way they packaged later on.
‘Inside Out’ was great recent Pixar no?
There’s no need to think of them as ‘Disney songs’. They would function in other contexts as well. Before being hired by Disney, Menken and Ashman wrote ‘Little Shop of Horrors’. Who else would write a couplet like ‘I thrill when I drill a bicuspid. It’s swell though they tell me I’m maladjusted’
Three of their songs made it into Aladdin. This is much funnier as a demo than anything in the film. The lyrics are hilarious.
https://www.youtube.com/watch?v=5R2yyr7atrA
They were totally meant for kids. First Brothers Grimm story I ever read was Die Scherer, about a big scary guy with huge scissors who cut off the thumbs of kids who wouldn’t stop sucking them. It was a lesson for kids, targeted at kids. It was a different generation of kids, not coddled like ours, the folk tales existed to remind kids it was a dangerous world, and they needed to get their act together.
As soon as there’s dancing rats and chairs, it’s a Disney song, and I don’t like it. Like I said they could stand up on their own, but once they’re in a Disney movie with all the Disney crap I don’t like em.