@RKantner That is true. You’d have to make sacrifices to use Company as the family.
The good news, there is always another option. HubSpot introduced custom objects since my original solution last year, and you can now create your own “Family” Object as long as you have Enterprise. You can check out the details about using custom objects here.
Just be sure to add the custom “Family” Object to your data mapping guide so everyone knows how to make the associations in your system.