Dd is 2.9 years and we have been potty training her for several weeks, maybe a month. Dd's nursery has been training her too. Previously dd would wet herself then inform us she needed to 'wee'. Since last week she informs us when she wants to wee or poo but only does so in her potty. Of course, we still have to go through training dd to stay dry at night!
Dd wears pull ups when sleeping but we change her into knickers as soon as she wakes.
Just want to encourage all parents potty training their dc. It does seem tiresome and if you own carpets like we do you worry about having to scrub them when there are accidents.