Do you check up with your kids where he is in his studies?

Nope.... the more we checked the more he rebelled and went out... i had a quick discussion along the lines of... 'sorry for caring ... and i agree its your life....'.. we backed off checking and they had nothing to rebel against... well only when we had a very loud BBQs when he was trying to study... apparently we were being selfish disturbing him

Guess only one parent is there on the site.