Just confirming that the restrooms are labeled "Companion Restroom" and they are marked with a wheelchair symbol. They are also
not listed on the park maps; the only places WDW lists them are in the WDW Guidebooks for Guests with Disabilities.
They are just a single toilet restroom that complies with ADA wheelchair accessibility standards as far as the size, space and arrangement of the room. They also have a variety of grab bars for people with disabilities to use to get on an off the toilet. Some of them are smaller and are sort of barely usable by someone with a wheelchair because they were built under older requirements.
Like ramps, curb cuts, and wheelchair accessible hotel rooms, it is required by ADA law that the parks have some, but there is no requirement that they be
reserved for use by people with disabilities. Because of that, I would be really surprised to see any CM say anything to anyone using them (besides some people using them might have invisible disabilities).Edited to clarify: Just because there is no legislation, doesn't mean they
should be used by people for convenience. They exist to meet a need; and if you don't have a need for them, please save them for the people who do need them.
Here's a picture of the inside of a typical Companion Restroom from allearsnet.com
For people who use them as a convenience, it may seeem like there are a lot of Companion Restrooms, but for people who use them out of necessity, there are very few and they are far between.
There are a limited number of Companion Restrooms in each of the parks. On the list posted on allearsnet, there are
a total of 6 listed for MK(and one of those is not in the park, it is outside at the TTC.)
Since MK is one of the oldest parks and was built under different accessibility standards,
most of the handicapped stalls in the regular restrooms at MK are not big enough to fit a wheelchair into the stall and close the door. They certainly are not large enough for someone to assist the person using a wheelchair or to have a 5 foot circle for turning inside the stall (the current ADA requirements for an accessible bathroom stall).
This means the handicapped stall in most of the regular restrooms at MK are useless for a large number of people who use wheelchairs and are not able to leave the wheelchair outside the stall and walk in. They are also useless for people who will be assisting adults or older children of the opposite sex (Just to mention two examples, I've seen elderly adult men or women using the Companion Restroom to assist their husband or wife who is disabled and can't use the bathroom without assistance - most people would not expect or accept those couples using the regular men's or ladies restrooms. Same thing for a male adult or older child with autism who needs assistance from his mother).
Because my DD's wheelchair won't fit into the regular handicapped stalls at MK, that means
those 5 Companion Restrooms listed by allearsnet.com (plus one in First Aid) are the only toliets in the whole park we can use. (not 6 bathrooms with multiple toilets in each one, 6 toilets in the whole park). We frequently have to cross the park (passing a number of restrooms we are
not able to use) and we frequently have to wait for the Companion Restroom to become empty when we do get to it.
Epcot is about the same as MK because many of the regular handicapped stalls are not really wheelchair accessible.
The Studio and AK have 'better' handicapped accessible stalls in the restrooms since they are much larger, but some people (like my DD) really need the quiet of the Companion Restooms, so even the larger handicapped stalls in the regular restrooms are not appropriate for them.
So, I add my voice to those who say,
please only use them if you need them. If you have other choices, please choose one of the other options available to you and leave the Companion Restrooms for those of us who have no choice.