You can find a medical professional to basically claim anything these days. I could go into specifics, but there's a whole industry of ethically questionable doctors that can help you take advantage of well-intentioned accommodation policies with a subjective diagnosis. While I agree there are cases of serious stress disorders, there are also a bunch of people claiming a disorder for personal benefit.
The opioid epidemic where the pharma companies were the ones paying to bribe the doctors?
I don't think pet-food companies will be paying doctors to approve support animals, so probably most of this will have to come from the patients themselves.
> Opioid epidemic disagrees that only the rich can get shady Rx written.
Chinese fentanyl typically doesn't need a script.
The pill mill part of the opioid epidemic was decades ago. Today, access to pain meds is better described as a war on pain relief. People in chronic pain with no history of abuse are denied everywhere, every day.
I know a number of people who turn to the black market because it is their only option.
That fits my experience. All the rich kids I went to school with had doctors notes that gave them extra time on tests, or even let them take the test at home when everybody else had to take it in a proctored hall. They gloated about it too.
I suspect strongly that the people worrying about it being abused outnumber the actual instances of it being abused. I don't think there is rampant unchecked fraud.