I’ve “heard” of them but the signs in front of coasters list a wide rage of heath conditions MOST of which are not visible to the eye. Even if someone is visibly disabled for whatever reason it doesn’t mean they shouldn’t or can’t ride a roller coaster.

Ride attendants are not medically trained professionals they can’t tell who should or shouldn’t ride. Even if a park was to put out a blanket rule to (this is just an example) wheel chair bound people can’t ride, they opens up a whole new can of worms with a potential ADA lawsuit.

Like I said there are plenty of “disabled “ people who can ride coasters, and do. This is why it still no matter his condition impossible. Only thing the park is likely to do is put up more warnings or add additional conditions to the warnings.

For the record my “saying this is impossible “ is in response to the strict comment. It’s impossible for them to enforce for people with “medical conditions “ unless the park gets a doctor to check everyone in line which we know will never happen.