Any father that would being there son into a murderous organization is not normal.

If life circumstances brought the father in that's one thin however, every father should want better for his son.

You are taking a blood oath to put the family before your children.
And some of these guys have killed their sons.

Imagine that?

By right Sonny should have killer both his sons.
And given the opportunity to for the family he would have.

How is that for normal?