I did bring up the fact that when our son is older, it would be nice for him to have someone family-wise that he could rely on. My husband, though, didn't buy into that. Given his present relationship with his siblings (they aren't angry with each other, they just don't talk often at all), he doesn't see why someone would need a brother/sister for that reason. I could bring up the nursing home idea, but I think I already know what DH would say. When he gets that old, he says (now) that he doesn't want that burden on DS's shoulders. I don't know. I feel like I'm fighting a losing battle.