Why cant kids vent and say what's on their minds to their parents even if its...

[CrazyyMike]

...within reason and are respectful? I'm a 21 year old male and there are sometimes when I just want to bash my head against the wall and drive my self to the point of wanting to harm myself because I get so aggravated with my mom because she talks down to me like im dumb and can be nasty sometimes, but I can't say anything even if I try to be respectful because the second i open my mouth I get accused of having an attitude and she has the way about her like I'm the adult I can speak whats on my mind but you cant because you are inferior... and when I do say anything she flips out because she thinks I'm trying to be on the same level as her.

So to conclude, why can't kids vent?