There were 2 arguments presented here.
1. Boys like to rough and tumble when they play, and we shouldn't try to change their nature.
2. Boys are taught to man up and be stoic, so we should teach them to be sensitive.
The two seem kind of inconsistent. Is it a boy's nature to be stoic, or is it taught? Should we teach being stoic, or teach them to share feelings and go to the damn doctor and protest injustice against them and what not?