> For most things in life where we could impact the lives of other people materially - driving is a good example - we ensure some minimal amount of training before letting people perform that activity.

> How about some minimal coaching so that all parents are aware of the state of the art in child psychology and techniques to do better as parents.

In my country, we had a housekeeping class in school, that taught everything from basic cooking skills, to safety with electrical appliances. There was also a woodworking class, where you were taught how to use various tools correctly and safely. Later, in university, there were courses that concerned things like paying taxes in more detail, employment law and how small businesses work etc.

I think that parenting classes sound like a good idea. It can also help people figure out when they're absolutely not ready for something or are not comfortable with it - like happened to me and getting a driver's license.