This theory has been proven countless times that bad children are a product of bad parents except for rare occasion where the children deliberately turns bad by themselves.
Parental behavior shapens the live of the children,it is like a mirror,it shows you what you gave it.No one is born a ruler,they are made. The same way for good or bad, people learn it, people learn to behave in a good or bad way.
Most of the time parent impact their lifestyle into their children knowing or unknowingly. Parents need to be conscious of how they behave in front of their children,it is unhealthy to fight,abuse or curse out someone in front of your kids. I have seen different case study of parents that their children turned out bad due to their negative influence on the children.Children that comes out of a dysfunctional family and still turns out good has undergone therapy, counseling and he/she has decided not to be like their parent,it is a conscious effort that has brought them to that stage of been good and great,their intentionality to be good people has overriden the negative influence their family has on them.
I know a friend that his father was always abusing his mother emotionally and physically,I went to greet my friend one day and one issue happened between the parent and they couldn't even respect the fact that I was there,they started this hot argument and eventually result to fighting in front of me a visitor for that matter,I was appalled by their actions,I was ashamed,I had to just leave that day. That was when I understood why my friend was always abusive to his girlfriend,he wasn't beating her but he didn't know how to treat the lady right,he was always nitpicking,he always flared up everytime there was little argument, things that shouldn't have led to argument or fights initially. It was the negative influence his parent had on him that made him that man either intentionally or unintentionally, trust me sometimes he won't want to be like that but his mind and brain has been messed up seriously,so he wouldn't know how to act right,love right and feel right.
The blueprint for not having a bad child/children is to train up your child in the way he should go like what the word of God says,and he won't depart from it. Some people do not train their children when they are kids,it is when they grow up,now you want to train a grown up,when they already know everything they need to know either good or bad. The foundation has been destroyed already,If the foundation is destroyed,what can we do? Their are basic things parents need to know,start training your children when they are small,when the teachings can still enter their head and mind.
Another one is to act right, please do better,do not have an argument in front of your kids for any reason,let there be love in the home,let your home be lively, protect your kids but don't overprotect them,teach them good manners and don't be peevish to them so that they will be free to tell you anything at all. Some kids are dying inside,they want to talk to their parents but they can't because they will be lashed at,be friendly to your kids but do not take nonsense at the same time. Don't let other people teach your kids what you should have taught them,help them to talk to you, don't be too harsh on them.
Thanks for reading