Totally agree, some boys (like myself some years ago) learn that they must behave in certain ways, they learn that rough playing is not how a "good boy" behaves

Totally agree, some boys (like myself some years ago) learn that they must behave in certain ways, they learn that rough playing is not how a "good boy" behaves, so they are raised believing that they shouldn't be too "rough" in order to be accepted, you should not rise your voice, you should always listen, you must be nice all the time, then you grow up and have a difficult time socializing in high school, then you think how unfair is the world, why the "bad guys" get all the attention even from teachers who are supposed to repeal those behaviors, then you spend your twenties fighting those nice guy impulses, until you learn that you shouldn't care that much, and stop thinking too much about it, then you learn to just be yourself, and start putting yourself first, it takes a long time to realize this stuff by oneself.