FUCK is not a bad word. FUCK is used by grown-ups to express frustration, anger and break out of self-pity. FUCK is the start of new life, in and out of the bedroom. Denying yourself a FUCK is to deny yourself the right to be a mature human being; that's why only grown ups FUCK.
FUCK is blind to everything but age. Anyone can FUCK (except kids, that's just wrong). But racism, sexism, elitism, and other forms of discrimination are all powerless against FUCK. You may stand on either side of a debate between gays and straight people, but you won't stop adults who want their FUCK.