lead by example
Parents should set an example and make themselves a good example for their children.
Positive language
We can start with reasoning and using positive language, so that children can understand what impact their actions will have on themselves and others.
lay down rules of conduct
You can also take some actions, such as formulating a code of conduct for children and defining a reward and punishment system to restrain children's behavior.
Educational ways and methods
Parents should have appropriate educational methods and methods to guide their children to develop good life habits and moral concepts.