ichabod
Legned
Your family can be allies, patrons, or dependents in GURPS. That makes them more involved in the game. If you have local family in your background in a D&D game, I will (as DM) make use of them for side quests.In Cthulhu type games, like Trail of Cthulhu and Delta Green, players can select family members as their sources of Stability (something that helps keep them sane), but it doesn't have to be kids and who knows how involved they'll be in the game?