There are so many teens saying that they wouldn't show it to adults. If you want to be a professional, you HAVE to show it, but if you're doing comics just for fun, then hide it and keep it to yourself. Adults won't judge you, they won't psycho analyse you, because we all been there. But I get it, I also had that insecurities 10 years ago.
I'm not ashamed of my work, and I show my comics to my friends, family and people who have more experience than me, because I want to make a living out of my art. Not my mom, never my mom, LOL. She knows I work in comics, and she know I have published some comicbooks, but I won't show them to her, because she is not the target audience.