This report hit the news yesterday in my area.
Okay lets weigh the pros and cons based on the environment I WORK IN:
Pro: I am a dog mom.
We are seeing more and more public preschools in this area.
As of yesterday the mother had hired a lawyer and the school was still making excuses.
We actually had a teacher on staff a few years back who had a seizure-assistance service dog. These animals are so well trained, there is no reason they should not be allowed. They need more proof? The child has seizures! The dog can sense them and get the child help sooner! How can they NOT see the sense in this???????????? I am not an animal person at all, but I would have absolutely NO problem with it, and I can't believe any teacher would. We provide all kinds of accommodations for children with less medical "proof" of their condition, this is no different. Sorry, but I think the superintendent is an idiot.
The only problem I can see would be other children who might have allergies, which would have to result in that child being in a different classroom. There might be little ones afraid of dogs, but I am sure that whoever trained the dog could come and help the students acclimate and teach the other children about the difference between a service dog and a pet. That might be hard with pre-schoolers, but not impossible.