Every little girl goes through this stage bar the odd exception, my inner child was none and I still can't get it out of my system.
In your little world you are the Princess, whose world revolves around your needs natural as perceived by you as you live in your imaginary castle complete with it's flag.
In this castle you have servants usually boys to do all the things you want to happen at that very instant and woe betide them if they don't!
Some of us could turn this into a game you played at school recess or at home or in the park and in lots of ways it's really cute as for one thing you have a lovely set out dresses and tiaras and magical slippers. Yummy!
It's this kind of innocent play that many of us look back on with fondness although acting in that kinda pushy manner isn't really to be recommended in real life. Give me an outfit and I'll play Princess Pushy with you all day!