Promotion To Parent has these relationships to other tropes:

parents kids shares a parent with:
Parental Abandonment
Take Care Of The Kids
parent child
Parental AbandonmentBlitz Evacuees
''Conveniently An Orphan
''Missing Mom
''Disappeared Dad
''Deceased Parents Are The Best
''Death By Childbirth
''Bonding Over Missing Parents
Take Care Of The KidsChildren Raise You
You'll need to Get Known if you want to add or modify these relationships.