We have had a potty in the bathroom for about 6 months now, so DS knows what it is and has got used to seeing it, and we started potty training last week.
He is 2y7m and is quite advanced for his age in a lot of stuff... except this. He just doesn't seem to know when he is about to wee, despite me asking if he needs to go frequently. He also didn't poo for three days and I worried that this was due to being apprehensive about using the potty. He was really excited about wearing his 'under crackers' at first and I'd taken him to the shop to choose them, but after 3 days he was asking to be put in his nappies again. So, after 3 days I gave up when he hadn't done so much as a sniff of a wee in his potty.
I'm concerned - how old is too old for potty training and when should I expect him to be ready?