DS is just shy of 7m, and I offer him cool boiled water in a cup/sippy cup during meal times (as per the HV suggestion), but I was wondering, how long does it have to be pre-boiled water? When can they just have tap water? I'm loathe to offer him juice of any kind (we don't drink it anyway) for as long as possible, but it's a pain when we're out and I have to take the water with me (all sippy cups leak. ALL OF THEM!).
So is there a specific age when he can just have normal water?