My oldest is five and hasn't worn a vest since he was under two. If it is cold he wears a long sleeved t-shirt under a jumper. I just read on another thread about it being mentioined (on here?) that children without vests have been described as neglected, and actually remember my neighbour, whose children are 8 and 10, wearing vests. So do your children wear vests? At what age did you stop? Are vests fundementally important? It had not occured to me to buy vests beyond the age of two and the baby vests with the poppers.