A family doesn’t have to be a man, woman, and two children. A family can be over 3000 anomalies and several thousand employees of an extralegal paramilitary organization.
A family can be a Mobile Task Force sent to prison by an Ethics Committee court for a crime they didn’t commit who promptly escaped from a maximum security stockade to the Three Portlands underground. Today, still wanted by the Foundation, they survive as soldiers of fortune. If you have a problem, if no one else can help, and if you can find them, maybe you can hire the Eta Team.
In other words- We don’t know the exact definition of family. Is it a chemical? A virus? Is it a SCP itself?