Hey man, I saw your other thread with your other friend and he looked like a cool dude with or without hair. I think that it's cool that you've actually convinced a few of your friends to try out an arguably bold hair style - by getting rid of all of it entirely!
If they don't like it for themselves, it always grows back, so no worries.
Hell, shaving my head failed to inspire a single person around me to do the same.
Oh well.. Rock on, brother!