1. Traditional idea: Some parents think that strict education can make children more obedient and disciplined, thus making it easier to succeed. They may think that this is the way of parents' education and will be passed down.

2. Lack of correct educational knowledge: Some parents may not have received professional educational knowledge and do not know how to correctly guide their children to grow up. They may mistakenly think that strict educational methods are correct and ignore children's mental health and personality development.

3. Social pressure: In some societies, the competition is fierce, and parents want their children to succeed academically and professionally. They may think that only through strict education can children be competitive enough.

4. Personal experience: Some parents may have experienced severe education when growing up, and they may think that this is the only choice or that this is what they expect.