1. communication: communicate with the child deeply to find out why he has to tie his hair, and is there any special reason. Understand and respect children's ideas and have a dialogue with an open attitude.

2. Guiding thinking: Guide the child to think about whether tying his hair will have an impact on his life, work and social interaction. Let him weigh the pros and cons and realize the possible consequences of his decision.

3. Establish rules: Make some rules with your child, such as when you can't tie your hair, and whether you need to ask others for advice. This will not only respect the child's wishes, but also make him understand that his decision may affect others.

4. Try to experience: let the child experience the feeling of tying his hair at school, workplace and other time periods to see if his decision is appropriate. This will give children a more intuitive understanding and understand whether their decision is really feasible.

5. Cultivate aesthetics: Cultivate children's aesthetics and let him understand that different hairstyles are suitable for different occasions and personalities. In this way, he can better choose the hairstyle that suits him.

In short, parents need to treat their children's rebellious behavior with an open, understanding and guiding attitude. Respect the child's personality and decision, and let him understand the possible consequences of his actions. Help children through this rebellious period through active communication.