Does anyone not keep hand me down shoes for siblings especially if they have a 4 year age gap? It's said that hand me down shoes have already moulded to the previous wearers feet and thus damage the next wearers feet...not sure how true this is. But my 4 year has worn wellies on and off for a year and a bit of the print of the sole has come off (there's black marks inside the shoes too)...no point keeping them but DH wants to keep everything for baby...