Classes are available - special needs - ADA- mainly a joke.
Have you ever interviewed a Special Education teacher?
Some are teaching dyslexics, asperger’s, autistic, mentally retarded, deaf, etc. Yet they have never taken coursework that cover those specific areas. It’s the luck of the draw.
Most of the kids end up tossed into general education classes ‘as mainstreaming’ and the kids get little or nothing. Just paced along. The best way to find out is check the internet specific forums and read the local comments.
In some schools, in order to get specific services for specific issues, parents often resort to suing their school district. Sometimes their successful, often times not.
Many special needs kids families withdraw them from the schools and the schools are often thankful because they lack the proper resources to do the job. There’s an industry of these private schools catering to needs, but they deserve careful scrutiny before you fork over the farm to pay.
I have a friend whose son has Downs Syndrome -aged 30 years old. The suburbs of San Francisco did an amazing job with him and he is very high functioning adult. Early on he had PT, OT, and Speech 1:1 all day long (3-8 yrs. old.) The district invested a ton of time & resources into him, it paid off. He was mainstreamed for middle school & HS.
The quality of services are all relative to your location.
I do not as a Special Education teacher consider myself a joke. I won’t argue with you as I see no reason to try to convince you of such a strongly held belief nor subject myself to being called a joke.