The family depends upon the caste system - which is confused when women become corrupt. When that happens, family customs are destroyed and everyone goes to hell. (Or something like that.)

When vice predominates, women become corrupt. And when women become corrupt, the caste system is confused, which leads people to hell. The duties of castes and families are destroyed. Those whose family customs are destroyed go to hell. 1:41-44

There's nothing else about marriage, family, or children in the Gita.