I personally believe parents should acknowledge that sexual urges (especially during teenage years) are a natural aspect of human nature, and masturbation is an appropriate manner of releasing them. It seems silly to me that so many adults perceive the act of masturbation as "dirty" or bad.
I am in no way encouraging anybody to masturbate, I am simply saying that parents should not condemn their teens for doing so - it's part of growing up after all.
Opinions?