Family relations can affect a few issues within you, but it can go far and far back so we really don't know why some kind of behavior affects the way we raise our children.
If one family is giving their children more freedom they will most of the time raise their children with the same freedom.
But during generations and the time we live in still ha a few things wich comes back.
Deep within us not only issues form past lives, but also dorm ancestors who had dramatic problems they raised their children to keep them away from what they had in life thinking it will stay away from them.
Sill for them it doesn't have to be there but it can come back in a grandchild for example. This child is then meant to be to release the family karma and so on and on.

What I have seen in one of my client is that her granddad was an alcoholic beating her mom and even her and her brother, she couldn't let it all go and still has help of social workers. Now her brother but also her son began to do the exact same thing, only because they cannot let go what happened in the family but also of not knowing better. Her son knew what happened but he didn't know how it was but still it was inside him that karma, for him it was time to let it so after I talked to her her son was going to rehab.
This is another way it can come, though when there are more children there are in a family and only a few can get through it they are released only by accepting what happend even if they are not aware of it.

This is for all families even if there is only one who wants to break out of it he or she saves future generations.