I wouldn't say afraid, but I definitely wouldn't show my parents. They'd probably be dismissive and ask that I pursue some other "real" career upon me asking if they wanna read it... even though what I'm doing is just a hobby, I'd still get a lecture. But I mean, whatever, let's say they actually took the time to read it. I don't think it'd mesh well with them. They're the religious type and since I'm writing about demons and having a character cuss here and there, I'd probably get a lecture out of it, for sure, and I try to avoid those as much as I can...
I mean, my biological mom would probably be more supportive, but I don't think she'd read it bc she loves telenovelas (soap operas for Latinos, basically) lol my little sister would definitely be into it, she loves anime and drawing her own little comics for fun so, she'd be down for it! Uhhh.. Far as cousins and uncles and aunts and everyone else in my family go.. maybe they'd check it out and be like "Oh cool, I didn't know you liked this stuff. Anyways, so about this thing that happened.." and leave it at that xD
I'd definitely show it off to my friends though, I got a bunch who are into anime and comics so I imagine they'd like how it'd turn out. Even the friends I have that don't understand the world of comics would give some love and support my way, since they'd be impressed with the fact that I put so much work into it. Hell, some of them would be down to promote what I got going on so.. I got no fear in sharing my stories with my friends, like at all, and that makes me happy~