Wait until they are ready and interested helps avoid stress for them and false starts etc. Dont do rewards etc. Just offer a potty in the lounge room and bathroom and you cab ask would they like to use the potty etc. They will do it all when they are ready and when theyvare really ready its a pretty easy process tbh.
@Bronagh thank you!
Best advice I’ve been given is introduce the potty and try and get them to sit on it with their clothes on first. Helps reduce the fear of it