I show and discuss it with friends, but not with family...
Because you can choose a friends, who'll sincerely try to understand you, like your personality and will be at least somehow close to you in their mindset and interests. Which increases the chance that they'll like your creative works, too. Or, at least, that they'll not try to hurt you for it, even if they'll not like it.
But you can't choose a family...
Well, of course, theoretically, my family can find my comics by themselves and understand that it's mine. And start to tell loads of shit about it and about me. But I have no reasons to force this process by myself. 