Yes, I think parents should definitely teach their children not to behave badly in public places. It's part of their responsibility as parents to teach their children how to behave properly. When children act out in public, it reflects badly on their families. Plus, behaving well in public is something that society expects from everyone, including children.

It depends on the situation. Children often learn by observing their surroundings, not just through direct instruction. Some behaviors that might seem inappropriate are just part of a child's natural development. Instead of strictly teaching children not to behave badly, parents should focus on guiding them to understand why some behaviors are acceptable and others are not.