Great article Jack; You may want to stop reading there.
My understanding is that Disney (or anyone for that matter) can not ask for a prescription or letter from a MD when they are requesting ADA compliance, just what accommodations their disability requires. I can see a day when 25,000 people wait to get a GAC at the MK under the premise that their child isn't able to wait in line. If you were to put all of those guests at the head of the line for the 28 rides, they would still have to wait to get on each ride because everyone else would have a
DAS too. This fulfills my prophecy of the fast pass queue backing up to the standby line anyway.
I have a close family member with a medical condition that makes standing in line for 30 minutes very difficult. It has nothing to do with ADD or ADHD, but it can be bad. We have experienced both systems that Disney has used and never had a problem. Disney does far more than most tourist destinations to accommodate everyone. For example Universal simply told us all attractions were ADA compliant and that we would need to purchase their front of the line pass. Six flags did a similar thing.
As part of the ADA most places (jury duty and voting are the only exception I can think of) can't and won't ask why. If you have a condition such as PTSD where the crowds in line over an hour causes panic, or you can not chance waiting in line because you may need a restroom at any moment, or your child has ADHD and can't wait, the current system Disney offers still is better than any other place I have been to. I see this a frivolous and a waste of taxpayers money.