It's something I've been wondering as outside the NICU ds was in there were photos of the prem babies then and now. I could still see that they were prem babies, even the older children, mainly because of the forehead iykwim. Recently we were in a supermarket and a woman asked me straight away if ds had been prem (she was a nurse and usually people just think he's dinky for his age) even though he's 14 months now.
It's doesn't bother me but I'm just curious about when you think your lo's stopped looking like prem babies.