Talk about modern family. In a move that's stirring opposition from conservative groups, California lawmakers are considering whether to change the legal definition of family by allowing a child to technically have more than two parents. The proposal, by Democratic state Sen. Mark Leno of San Francisco, would allow for children to benefit from multiple sources of child support, advocates argue, and would legally recognize those families that do not represent traditional parent structure. Proponents say the measure does not change the definition of who qualifies as a parent under current California law -- it only amends the two-parent limit....