my son is nearly 2 and not potty trained i havent even started to try to do that yet i dont think he understands he dosent seem aware of when hes doing a wee even , will the nursery staff change his nappy? i registered him at one he gets free hours i registered him back in august and forgot to say hes not potty trained, they didnt ask me an i didnt even really think about it at the time he is meant to start in january , he cant really talk much yet either he is a slow developer , do they change nappies of toddlers???