Not all people are 'pet people'. Unfortunately our culture has a view of these animals as being low-maintenance. If people considered reptiles the same way they do dogs, enclosures would be larger, and more attention would be paid to essential elements. I don't agree with selling exotics in stores, or even dogs for that matter, but if they are going to sell them, I think a great idea would be to display them in the right-sized enclosure so people can see right off the bat that iguanas need a 6 foot enclosure or ball pythons should have at least 4 feet.Just to play devil's advocate, maybe the average person shouldn't own an exotic pet.
When I worked at a local pet store I lost count of how many people came into the reptile section and just wanted a pet that looked cool, without any regard for its care or well being.