But the vast majority of 'emotional support' animals are just pets that people want to keep with them.

I try to be understanding and compassionate to all underprivileged and disadvantaged peoples, regardless of their struggles, but there are a not-insignificant number of people who need to either deal with their issues more directly, or seek real help.

Maybe that's heartless of me, but I very seriously doubt the man buying lumber at Home Depot needs his Golden Retreiver with him.