Actually, the issue is your background. I'm sorry to say, but family services will place children in a home, foster or otherwise, where both parents have a crystal clear background check.
I understand that you have made some bad choices in your past, but, unfortunately, it has come back to haunt you.
While I am a nurse, my MIL is a
CASA, I am very familiar with how this works. It has little to do with your ability to own a car or drive, but rather that you have been convicted of offenses regarding addiction in the past. The court must ensure that the child/children are not placed into situation where they may be endangered.
The fact that the maternal rights were terminated, for what reason you have not stated, the courts will be reluctant to place the child/children in the custody of a family member with a criminal background of any kind.