@Methen,
I disagree. People are different. Each person is going to respond to their experience with their parents in a different way.
How you feel about your parents has to do with your relationship with them (which includes how they treated you). It also has to do with what your friends say, with what you read or see on TV, with cultural influences, with any experiences you had that weren't your parents fault like sickness or injury....
People aren't machines where you can predict how they feel based on certain factors.
That being said, of course I think that parents should treat their children well.