there is a hole in the seat so the person doesn't have to be transfered to and from a toilet, the chair could be backed right over it. it can also be used to take a person who cannot into the shower, so their peri-area can be cleaned.
csa, no child should be going without. hopefully their needs are being served right in their own school districts. "standers" are beneficial for prevening pressure sores caused by sitting or being confined to bed for extended periods of time.