Don’t Touch My Stuff
As a kid you never want anyone to touch your stuff, the concept of sharing is slowly being drilled into your skull by school and your parents. I think ‘only-children’ their misfortune or fortune to not have any siblings to share their things with is that they have everything for themselves and they learn to share some things but some others they will never ever have to share.
When you get to always get your way it will be hard for you to see other kids that visit your home take over your toys. On one hand, If you went through this you understand it one hundred percent. On the other hand, if you had siblings you can understand how annoying is it to find your sibling taking your favorite shirt or borrowing stuff you don’t want them to borrow from you.