Why are some children more innocent than others when they are little?

[Anonymous]

I will tell you about my experience when I was a small child, a classmate was six years old and I was the only child in the class who was not invited, I sat next to him so at one point he mentioned that his mother told him that the light would go out that day, so maybe the party can't be held if it doesn't show up on time.
I knew he was not invited but I still told him: oh my, it's very sad, I hope you can celebrate it today.
He answered me: lose, but you are not invited anyway.
So I told him: well yes, you didn't invite me but today is your birthday and you should have a good time.

well, I studied with very nice children and others were not so nice. but.
why? Isn't everyone supposed to be kind and innocent at that age?

Updates

+1 y

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[Lazi-boi]

I don't know why, but the way someone acts like a child usually ends up being their attitude when they grow up, just with a lot more tricks to cover those aspects up

[Alexandrubaschet08]

i disagree whit the idea that "all" kids are inocents.
Depand on the way they behave.