Have nearly 3yr old DS.
We mostly catch his poo in
The potty as its a long time coming so plenty of notice. But I have to wrestle him on to the potty - although he conceeds at the last moment.
Wee never goes in the potty as there's no warning.
I tired taking his nappy off a few months ago and he gave himself a bladder infection holding on!
Dd was fully potty trained at 20mths!!!