I don't want kids in my realm
Why not allow kids to be in your realm at all?
They keep on lying and are pretty selfish. I am really just not a fan of kids.
It's wrong to not like kids like that. There are some really nice kids. You shouldn't hate all of them.
I don't have to like them, do I? They can choke and croak on my realm.
Kids can be hard to handle especially if you don't have a lot of experience with them. But you shouldn't wish bad things to happen to them. They will eventually grow up to be adults and their experiences as children will shape what kind of adult they are.