Privacy never existed. When everybody knew each other in a village, kids were under many eyes.
False.
Correct is: privacy as a concept already existed in the Ancient era. It is one of the younger human rights, it gained wide-spread adoption in society/culture and accompanying recognition in law about 200 to 100 years ago.
The expectation of privacy has always been when traditionally not under the eyes of others. We've always had this in villages where kids sneak away from supervision.
Small closed groups feature bullying or enable serious abusers fairly often. Misjudging kids or mistreating them, domestic violence, guys beating weaker guys were just fact of life in villages.