DS would not sit on a potty or toilet to start with. He was wee trained just before 2 but would stand and wee into the toilet (from a step) or I would hold the potty up. He continued to poo in a nappy until 3 1/2 because of fears or falling in etc (basically overthinking). One he became obsessed with how toilets work etc and he was ready we started sitting him on the toilet - initially for 2secs then a bit more, then a book... It took about a week and then he started actually doing something. He has been fine since.
