I should specify i dont agree with the grab for attention part. I agree with the part about phobias. about 1/10th of my friends like my snakes enough to even try to hold them (and my main snake i would give them was the breeder and resident snake at a local petstore and has never bitten anyone). I think it can be a fine thing to do to carry it outside, and even at a park that isnt too crowded (some people bring burms and boa constrictors to the park around me). I agree that taking it into a store is a lot more trouble than it is worth and i dont think the snake would enjoy that at all. The abuse of the support animal im on the fence about. I think if people got a support animal it should be a service animal sans extremely special cases because i have seen people in stores that have loud animals that let people play with them and that arent behaved at all. I realize that your snake is mellow and such but you cant truly tame reptiles and you can only train them on some things i would not consider them trainable animals. even the most docile snakes can strike out if the conditions are right.
Also, correct me if im wrong, people can deny entry to you and an emotional support animal anywhere except housing and flights right? I thought you still couldnt take them ANYWHERE because they arent a service animal.