Some experts claim that we complicate the toilet training process when we require children to learn on several different kinds of equipment in succession. We start them on the potty chair, then move them to the adapter seat, and finally we move them to the adult toilet -- making three tasks for them to learn.
There is much to be said for using one, two, or all three of these methods. I suspect that the choice will depend on your child’s size, age, and preference; your preference; and the size and the number of your bathrooms. Whatever method you settle on will probably work just fine for you and your child.
Proponents of the potty chair say it allows a child to be more independent, since a parent doesn’t need to lift the child to the toilet. It also allows a child to place his or her feet squarely on the floor when bearing down to eliminate, and the child can also use the support of the chair’s arms. Because a potty chair is obviously the child's own, he or she will take pride in possessing it.
Many parents like the flexibility of the potty chair, moving it to various rooms in the house to suit their convenience, and using it for travel as well. (Others claim that a potty chair should remain in the bathroom, so its purpose becomes solely associated with the bathroom.)
If you have a potty in the bathroom, you and your child can go to the toilet at the same time.
One disadvantage is that a boy will not be able to urinate standing up -it will be too difficult, and there will be too much splashing. Another consideration is that it needs to be cleaned out by you or the child. In the beginning, cleaning out the pot will be fun. With experience, it loses its appeal for a child -- and probably for you, too.