If I've learned one thing from this forum it's that each situation and individual is unique even if a m3dical diagnosis lumps us together.
As toilet training is initially a psychological battle of an individual mind over body function in earliest life it stands to reason it has a psycho logical component for many. Not saying this to shame any of us just an observation that each individual mind body has it's own responses to the need to relieve ourselves.
How to use that to our advantage I have no clue!