People come out, because they keep their gayness secret for a whole lot of good reasons. The alternative to coming put is not dating your boyfriend and going to reataurant. It is making sure no one ever see you with him, kiss him, hold his hands.

Also, parents and relative reacting badly on finding out ypu are gay are not exactly unheard of. There are also plenty of accepting parents, sure. But as heterosexual, they already assume you are one and you dont have to guess whether it will be breaker for them or not.