Answer :
Generalization is wrong ninety percent of the time, it's never cool to assume a group of people act the same way, but it's more or less true regardless. I personally think its wrong to generalize kids negatively at all, but it's even worse when people generalize them to the point where they all have the same personality, and they're lollipops and strollers. Kids can have different personalities, they can be bold, or scared. Strong, or weak, it varies, and not all kids are the same. Some kids have a strong or weak mind, as well. Some of them are smart enough to not generalize people.
(I really hope thats what you were looking for)