What control do parents have over their children,is there an event that can be called to controlling or do parents have a say in everything?

I think that that there are situations where parents can be too controlling. For example, attempting to control what university courses or career choices a child takes is definitely too controlling. Young people need space to make their own choices and they need to know that they can trust their parents to be supportive of them. If parents are too controlling then they create an adult who is unsure of themselves and who is always expecting to be told what to do.