@Aretheus LOL, I guess I don't exist then.
My mom always prohibits me to drink black coffee regularly all the way to High-school. Only tea and milk. sometimes I get milk coffee but certainly not everyday or even every week. She always said I should better did my assignment in the morning or be late at school than pulling all-nighter. I ended up in the regular late-to-school student list that even the school security recognized 😃.
I only became a regular coffee drinker after I got enrolled to college and my time management had spiralled out of control.
some families do strongly recommend their kids to not become a coffee addict, at least as long as their kids still live with them.