its kind of a double edged sword. Most people don't exactly want standard of care because it would set a standard of enclosure size. This could be a problem because everyone seems to have a difference of opinion on enclosure size. If you are talking a zoo size enclosure for a ball owning and breeding snakes would be unpractical or impossible for anyone who didn't have a building to do so. Some people say that you can put a snake in a tub and some people believe a hatchling ball python needs to be in a 55 gallon aquarium. And thats just ball pythons. Now you have boas, which have several different sub species all requiring slightly different care. This could go on and on and on. just for snakes. then you get into lizards. It much easier to say what a dog needs due to the fact all dogs need food water and shots. Same with cats.