Or at least that is how Kasper sees Stefan.
no matter how much Stefan grows, Kasper still talks to him like a baby. He assumes he still wants to do baby things and that this will not change.
Don't get me wrong, they are best friends, but sometimes Kasper talks down to him a little to much.
Example Number 1
Stefan gets upset about something
Kasper says: Don't worry little guy, you must just be a little tired and need a nap
Stefan hits him
Example Number 2
When setting the table, Kasper only gives kid dishes to Stefan. Then Stefan does not want to use them. He wants the adult dishes too. Kasper gives everyone a fork and knife, Stefan gets a spoon. This creates some jealousy.
Example Number 3
When Kasper grows up he says he is going to build his own chocolate factory, bigger then Willy Wonka's. Stefan will have his own room there full of toys so he can play all day. I told Kasper that when he is an adult Stefan will be too, but he does not believe me.