Emotional overflow
When teaching children, teachers often have emotional breakdown because of intimate relationship, and can't coach children calmly like other children.
Lack of majesty
Teachers usually bring their own dignity, and students tend to be in awe of them. However, in front of their children, this majesty often no longer exists. Children will not respect their parents because they are teachers, but may behave more casually because they are too familiar with them.
Set expectations too high.
Teachers usually have more expectations for their children and are deeply responsible for their love. This expectation often puts more pressure on children. When children fail for a long time, once they pass, they will be given great encouragement and reward.