I was found guilty for touching the little girls during exams
Why in the world were you touching little girls?
I just always wanted to touch their hair.
that is terrible for you to do. You shouldn't be touching little girls in any sort of way. You could be labeled as a predator or even lose your job.
I just wanted to caress their hair and the kid never seemed to care. There is nothing wrong with that.
It is wrong. Touching children without their parents' consent is wrong.