Why is it wrong to be an introvert?

I think it is a wrong notion. You are free to form your own opinion about this. It seems somebody is trying to mislead you. There is no hard and fast rule for this according to my opinion. Also consult your mentor about this when time permits.

being quiet has nothing to do with being an introvert. An introvert is someone who is energized by being alone and whose energy is drained by being around other people. Introverts are more concerned with the inner world of the mind. They enjoy thinking, exploring their thoughts and feelings. They often avoid social situations because being around people drains their energy. Someone can be loud and be the center of attention at a party. but they are introverted if they feel the need to be alone for periods of time to recharge and gain their composure. so your assessment of 90 percent of people being introverted is faulty because you can't tell if someone is introverted just by looking at them.

I am an introvert, i hate all things teens do, i talk different and act different. It's not wrong, but if

you want to end up scaring everyone and get being avoid, try to act like an extrovert. Everyone is introvert, yes you read good, EVERYONE. But just few people show it from the outside.

I'm an introvert.

It's harder to get a job.

Believe me. I know. I've been looking for 3 years.

Introverts also get stressed more easily, so they may have a shorter life span if they don't try to cope with this stress in a healthy manner.

Because most western societies see quietness as a negative thing that holds you back.

50% or so of people are introverted.

Just act extroverted to get along with them.

Youre lucky, I have Aspergers syndrome, so I dont even know how to fake it