1. Work pressure: Parents who are teachers may be under great work pressure and need to spend a lot of time and energy on teaching, which leads to the inability to take care of their children completely, so there may be a situation in which their children are not well educated.

2. Improper educational methods: Parents who are teachers may have some problems in educational methods, such as being too strict or tolerant, which is not suitable for children, leading to children's disgust or conflict, and thus poor education.

3. Poor family environment: Parents who are teachers may have a poor family environment, such as disagreement between parents and family financial difficulties, which leads to emotional and behavioral problems of children, and thus poor education.

4. Disciplinary differences: Parents who are teachers may have disciplinary differences, which leads to their inability to give play to their advantages in educational issues outside their professional fields, resulting in poor education for their children.

5. Parents ask too much of their children: parents who are teachers may ask too much of their children, which leads to great pressure and anxiety on their children, which in turn leads to poor education.

In short, there may be many reasons why teachers' parents fail to educate their children, which need to be analyzed in detail. If parents think there is something wrong with their education methods, they can consider seeking professional help and consultation to help their children grow up smoothly.