Is the Hadd punishment of Zina applicable if the sinner is of a young age?

Asslamoalikum to all of my brothers and sisters My question is that **if people commit zina at very early age (8-12 or basically under 18), will there be punishment of those of 100 lashes?** And by the way just s*cking b**bs or l*ck*ing v*gina is considered zina or when a person loses his/her virginity before marriage is considered zina or both things considered zina.