“teamwork is very important after you get the job”
Of course it is. But that wasn’t my point. You engage in rigorous competition to secure employment. Kids growing up need to become accustomed to that sort of competition.
you need both competition and cooperation. There are conservatives who take the opposite extreme
Even within teams you want the best team member for the task required. Competition helps them to determine what their best qualities are. If they have no idea what skills or abilities they are really good at, how can they bring anything to the table?