Oh and yes, to inflicting kids on characters who seem unlikely to be that interested in them. In one of my fandoms that happens a lot to a rather prickly character, who comes across as very independent, but also someone with issues about family. It's so hard to imagine her being anything but very cautious and wary about the whole suggestion of kids and its really jarring when a story starts with the whole happy family setup without discussing any worries or reservations she might have had getting there, let alone the day to day stress of having to operate as part of a family unit rather than as an individual.