seven year old

Throughout the years I was always given the choice between working with 3 to 6 years old or 7 to 12 years old. I have always chosen the little ones and here's why.
Seven-to-Twelves strongly believe that they have to be the funniest, strongest, smarter and better at any giving thing whatsoever in every situation. If you say you've got a car, seven-to-twelves say they got a better car. If you say you've been abroad, seven-to-twelves say they've been to the moon. If you say you've got the flu, seven-to-twelves say they're dying with cancer. They have to beat you always. If you say your pen is black, seven-to-twelves say their pen is blacker. I mean, if you say your pen is black, three-to-six may say their pen is hotdog and they will try to eat it. Their car will be a dragon and they'll invite you to fly with them. If you say you've got the flu, they'll hug you cause they're cute. Seven-to-twelves are just annoying.
I'm sorry if your kid's this age, I'm sure they're not too bad. And they all should grow out of it and life should teach them that they know shit about anything and they'll become nice again. We were all seven-to-twelves once and we turn out just fine.
Well, most of us, at least. Some of us still have the need to beat, to be the best, to be always right. Still annoying. But come on, why take seriously grown-ups who think like a 7-year-old, right?