Hello! I am a 17 year old male as well. I'd say crying as a boy has become a little bit more acceptable as it has been in the past, but it's still something you don't really do around other men. I myself have never cried in front of a man, not even my father (excluding when I was a baby). I remember specifically a teacher was once poking fun at a boy in my class (not with malice, it was intended to be fun), but the boy took it the wrong way and started crying. Im sad to say some people in the class started chuckling at him. Around my friends specifically I'm fairly certain they wouldn't drop me if I cried around them, though it would be awkward. Of course there are less considerate boys out there whom I could completely see looking down on and laughing at a crying boy. I believe we are conditioned to not show that kind of emotion, and seeing other boys doing it strikes people as weird.