MDD SAID: A child is considered an autonomous extension of his parents till his bar mitsva or her bas mitsva age, and can be punished for the parents aveiros (Parshas Ki Teitze, Pashi on the posuk “Lo yumsu avos…”).
I POSTED THIS ON A DIFFERENT THREAD THIS MORNING, BUT IT BELONGS HERE AS WELL.
Interestingly, that is one reason given for the little known shita that the bar-mitzva himself makes the brocho of boruch shep’turani. and not the father. He is making the brocho that he’s made it past the age that he can be punished for the sins of his parents.
A KSIVA V’CHASIMA TO ALL!