My son just turned 2 and has had T1 for 8 months. He's ready to be potty trained! The only thing he hasn't done is write me a letter to ask me to potty train him.
So, I bought the potty seat, the underwear, the whole thing and found out that he pees every 7 minutes. I'm not exaggerating. A full bladder of pee, every 7-10 minutes. He's on water only to see how thirsty he really is, but he still pees and pees. His sugars are under control.
My Endo thinks I should wait until he's 3 and can communicate better (and even wait till he's dry when he wakes up). I'm due with #2 in June and do not intend to do any potty training in the 2 months before and 5 months after the baby's born, so if we're going to do it, it's gotta be now or not until he's 3.