My friends and family already knew it from the start and they seem to like my videos.
I used to have a channel back in 6th grade, only my friends knew about it.
I showed it to my class once as part of my presentation and they found it really cool that I made YouTube videos.
I never showed this channel to my classmates in high school or college.
A few classmates saw my channel once in high school but they asked if it was my own channel but they didn't really make fun of me or anything, they probably forgot about it.
No idea if the people in college would mock me or anything, everyone in my class has a YouTube channel because that's how you hand in video assignments here.