Oh yeah, quite a few of my family members and close-to-kinda-close friends, as well as family friends and such know that I make comics. I've been drawing since I was young so it was never a secret, but I didn't start working on my first "serious" (i.e. with a plan and the drive to finish it beyond like 5 pages) comic until age 23.
For me it's less about promotion, and more just that I like talking about my hobbies with people~ Not everyone is equally interested of course. For example, most of my semi-immediate family knows that I make comics, but I don't write genres that they like (and they aren't comic readers, anyways) so they're supportive of my hobby but don't typically ask about it and that's fine. Most of the chit-chat is reserved for my close friends.
One thing that surprised me though was the amount of people who would silently read the comic from my Facebook art page lol. That's the platform where most people that I know from College and earlier follow my work, and my posts very rarely generate comments or likes. However sometimes I would be at a party or event and run into some friends or acquaintance that I don't see or talk to very often and a surprising amount of them would say "oh yeah, I've been reading your comic. It's awesome!" Very flattering, and I was always like "wow really, thanks!" but it was just shocking to learn how many people will interact with posts on social media without actually leaving any engagement