A lot of things
It is possible to consider that it really uses a pot only when he learns to do everything from beginning to end usually between and , years.
A lot of things depend on encouragement of mother and from that, panties how easily are removed.
But almost till years emergencies are possible from time to time: on walk, outdoors or during gastric frustration.
Relation of parents to a schooling problem to a pot.
It is also important and also various, as well as the relation of children.
On one pole the parents who are not attaching great value to schooling to a pot..