

I’ve always found that it’s much easier to write for characters that have strong distinct personalities – iconic characters.
Some cartoon writers like to begin with a high concept, (“Let’s start the picture by shooting the protagonist’s mother and then the son goes on a magical adventure to search for a replacement mother figure, but then finds out through trials that he himself is an individual and thus important to the uncaring universe and can solve his own problems with the help of a nagging assertive female.”) “Who IS the protagonist?, some junior executive asks. Everyone in the room agrees that that will come later and isn't. The story is what’s important, not who it’s about.
The writers then plug in stock animation character types, and randomly choose what species the characters are. These types of stories typically use generic plots and stock animated personality types. The last 25 years of animated features have largely been about finding and loving yourself. They are peopled by a wimpy ineffectual lead, the strong assertive liberated female, the wacky fast talking irritating sidekick, the evil hook nosed villain, etc. The creators just change the “arena” and the classes of animalia, but the characters remain essentially the same simple stereotypes, all out to find themselves and be OK with who they are.
The message seems to be: it's OK to be an individual, just not if you work in our unfeeling corporate-owned monster of a studio.