"There are other ways to leave a legacy." She isn't talking about siring anyone- she's never done that, and doesn't intend to, either. Neither she, nor Jacob had a choice in what happened to them, and she wouldn't impose that on anyone. This is a half-life, of sorts, stretched over the years and centuries.

"Perhaps they're too drunk to even notice we're here. I see no reason we should leave." They weren't hurting anyone.