What is ADA afraid of?
I wonder if they have the same issue is Asia or Europe.
Bet they are allowed to say yes sir we would love to help you, just show me a Doctor's note.
If you are disabled you are disabled, proof should not be a big deal.
In the U.K you must, at the very least, present a DR or Consultant letter and a blue badge if you want disable parking (a blue badge is issued by government and entitles the person to closer parking spaces, they have your photo on them). Some parks require pre-registration and upload of said document at least 24 hours before visiting.
Each park has it own policy with regard to companion numbers and wait times. LEGOLAND, you are given a pass that has 10 ticket stubs. You go in by the fastpass equivalent entrance usually (but their fastpass, qbot, is chargeable at £15 per person so not many people use it). You can use the 10 tickets for any ride, but you cannot return to the same ride within an hour. The disabled person has a red hand stamp, members of the party have a black stamp. The red stamp must ride. We have used this system, but never used all 10 tickets, as my "requirement" is shaded queuing, and not all rides are out in the open.
Chessington WOA requires pre-registration with an in-person visit to adventure services on the day, and each ride has its own criteria.
Alton Towers seem to change their position on it frequently, even for wheelchair bound guests. Depending on which CM you get you may go front of line, or you are asked to come back at a specified time. In the case of high-frequency loading, like the Smiler (new rollercoaster), all wheelchair guest must be able to enter the ride vehicle and depart the ride vehicle in the same time as an ambulatory guest, even if you need your carers to load you in and out.
I was discussing this with a friend of mine, whose son has just been classed as Autistic. Now, my middle child (age 4) displays the same behaviour as hers, sometimes worse, and he is going through assessment at the moment (but only as he is having speech therapy). I know that taking my son to a themepark is stressful as he is a little when queuing but he is just bored, and I can't feed him sweet stuff or snacks the whole time queuing. He'll kick his siblings, climb stuff etc. He is given the 1,2,3 warning. On 3 I take him out of the queue and we wait for my husband to come off the ride with the other two. If he misbehaves again, he doesn't get to ride the next ride. I do not care if other parents look down on me for disciplining my child, even if in the happiest land in the world, he needs to learn, and slowly we are getting there. I don't know any autistic adults my age, and when we were little it wasn't a behaviour issue, it was called being a brat. Sorry if that sounds harsh, but when it is purely behaviour, without any other factors (like hyperacusis, learning difficulties etc), it is down to lack of "training". I have 3 children, all age under 7. I have handicapped cousins, deaf relatives, and have worked with special needs, so I am able to show compassion to those who do genuinely suffer on a day to day basis.