There is no discussion to be done, this is a truth beyond those who can't think beyond their hormones.
Though there are generally 2 types of people in this case;
1. Those who are introvert by nature, have always been introvert, will always be introvert and have no issues with it. The minority.
2. Those who are extrovert, have and always will be and can't manage without the approval and define themselves through others view on them. The majority.
This is why a lot of people, especially hardcore net lurkers which tend to be introvert, sigh constantly at how retarded the masses are, since they all flock to the popular choice a lot of the time.
Introverts tend to think this is completely choice since we define ourselves through personal choice and ignore that of other's opinion most of the time. But you will find that most extroverts, of any age, late teens to adulthood, are extremely conditioned to think how they are (that's not to say Introverts aren't, we just came off with an easier mindset to deal with in general).
Both have their advantages and disadvantages, as well as both being completely fine ways of living. Of course, people find it hard accepting things they don't understand, I get pissed at extrovert people innately.