Bi-directional links in database properties

I would like to be able to have a parameter in a database that links bi-directionally to a parameter on the linked object. (Notion does this really well, for an example.)For a use case example, if I have a People db, with a parents parameter, I would love to be able to link this param to a "children" parameter. The idea being that I could link Person1 to Person2 as their parent, and Person1 would automatically have Person2 linked as a child rather than having to apply all these links in both directions.