For over 30 years I specialized in behavior challenged teens in group home settings, school, outpatient clinics, etc. Many times there was one common thread. If the teen was angry, so was the parent. If the teen had a substance abuse, so did the parent. If the teen had a record with the law, so did the parent, with many of them having done time in jail. And the list goes on.
It was always and still is a real confusing situation. My mandate was to work with the teen but, in my heart, I knew if mom and dad could get better, there wouldn't be that problem with the teen.
Of course, there are disorders where even with perfect parents, the teen would have had serious problems, but a high majority of my behavior challenged teens had behavior challenged parents. I'd like to hear others' experiences with this one.