what you reap is what you saw. A child treated well in his childhood would most likely to treat his parents well in the future. A child treated badly would most likely treat their parents badly. I still believe that parents have the most influence to children than the outside world. there are a lot of parents who don't know how to be one. I'm not being pessimistic but its true. You said "I know families who have the same situation and i know d problem is not with the parents" did you stayed with the family 24/7 to conclude this? You think if something wrong is happening the parents or the family would let you know? Treat your children well, so they will treat you well. same goes with treating other people.