You have said what I think I tried to say .. Except you did it much better..
You are right, those people who could park, run and abandon those
ECV's or rental chairs really should not be taking the space and could accomondate those who need it. I also agree that allowing a child to sit in front, on the ground up against the ropes NOT intereferring with an adult who has JUST mobility type issues as you can easily see over without it affecting your view. Obviously, if there is a more significant disability such as visual or hearing etc that require a very clear view then that is totally justifiable.
I also agree with you about children believing in the magic my daughter truly believes in Cinderella and this is where she lives..
I also think that adults should have the same rights viewing a parade as a child but should not be so inflexibile to consider possible options to accomondate everyone.. Most adults should have the maturity level to understand this difference.
I like the wrist band idea. My child does not look disabled, many disabled people don't. She rides in special stroller but has significant disabilites that prevent her from be able to enjoy things in the same manner as the general non-disabled public (Inoperable brain tumor, intractible epilepsy, cognitive delays, hypotonia, mobility issues, visual delays and significant phobias due to tumor treatment ...etc) so for US it is important that she has her family with her and not just pushing her up to the ropes and stand behind her where she looses the comfort of having us near, she is 4 years old and when I asked the CM if I could move her chair and keep the space with her on my lap and he said 'No' only chairs up there.. There were alot of things I saw on my trip that was just plain UGLY human behaviour, thankfully I saw way more good than bad.. I have still not gotten over the man in the ECV telling me that either my 4 year old sits in her chair or he is telling the CM then proceded to get ugly with us. I also am quite annoyed that 5-10 minutes before a parade starts and everyone is already crammed and settled that families, many with significantly disabled children and adults are being forced to move to allow space for the newcomer without first asking those with parked chairs sitting elsewhere to move. There were also many people who were there with their family , that typically included sibilings who were under 8 that were being technically punished because they had to be there for their disabled family members and not one single 'ABLE' person and yes there are handicapped ABLE people who could move a foot back and let some of these kids see too and you know what, it would not have affected them one bit.
This is why I was so upset with the significant number of people, who, abused and yes, they abused these areas by parking unattended ECVS/Chairs and did other 'not too poilite' things thus taking away from the enjoyment of all the people there not just children, but even adults who need more hands on care.
I like the wrist band idea, it would ensure those who need it some space, it would also insure that those needing hearing or visual support get access to that, yes , you would have to plan accordingly but it at least would be fair. The sad fact is that we could not enjoy the parades from anywhere else but the disability areas, mostly because if DD had a seizure it was an easy area to deal with it and had close access to a CM to get help. The disability areas were much better managed at MGM then anywhere else, MK was great for us with the exception of it not really having enough area/well managed areas for the accesible viewing..
A friend of mine told me when she was there last year the trams were packed getting out of MK.. an older couple, one using a cane boarded the tram.. not one single person got up to let at least the one with the cane sit.. When one of the standing adults approached a young adult and his girlfriend about standing.. he said he was tired and got there first ..
.. This is the type of behaviour I see more and more often.
When I was talking to the CM at Guest Services she told me that there was alot of abuse in regard to disabilaties which is why they are making it more difficult for them to asess needs and harder to provide appropriate services.. she also said that many people feel the significantly disabled are getting priveldges.. sorry but if any person considers a 4 year old with an inoperable brain tumor 'Privledged' then mabe they are truly disabled.. I was very impressed though with how much Disney tries to help and the level of compassion shown to my DD but most of the Disney CM's. There were two in particular who made our trip very magical and can't wait to find out how to contact Disney to let them know of these very exceptional people.
. Also my Dad has to assist all of us. Our last trip to WDW was 4 years ago 
. My sister also has a kidney reflux problem where she damages her kidneys if she waits to pee. We'd been sitting there for an hour and a half when my sister had to pee. We were told if she left she might not get back in. This is a problem since my Dad assists all of us. We held our breath...Meanwhile there was this family to our left. The man in the 
for the people that allowed my daughter this experience that she can still remember and talk about almost a year later. By the way remember she does have autism and limited verbal skills.
It's not like were taking any space away from them. They actually ended up leaving and going to another accessible spot because the one we were in was going to leave them trapped at the end of the parade? 
