Karstdvr hit the nail on the head, despite being a Saluki(Go Panthers). People lose sight of the landscape before the Cave Diving Associations existed. First off there were 30-40 fatalities a year, just here in Florida where untrained divers had entered an overhead environment(Cave). The response was to dynamite the spring shut, and or outlaw cave diving in the county. Currently there are still occasional deaths, but they are rare and in almost every situation knew better, were told not to, and had utter disregard for people intervening to keep them safe. The Cave diving associations were granted 501c3 status because no one wanted the liability of training cave divers. The cave diving associations worked together putting in reaper signs, lining cave systems, mapping caves, training divers, setting standards like the golden rules, and getting sites opened and keeping them open. Basically creating, maintaining, and keeping safe the sport of cave diving as we know it today. Do you think preventing 30-40 deaths a year is a worthy cause?
In today's environment we now have for profit certifying agencies starting to certify divers, and some do a decent job, but the Cave Diving associations still set the standard for which training is measured. We even help correct issues in training with some of the for-profits. Some of the items that separate us, much higher standards for students and instructors. Students do more bottom time, and perform more skills, instructors also most be evaluated over time by multiple sponsors before they can become instructors. We are the only agencies with a comprehensive "cave softly" curriculum that has sadly fallen by the waist side with other agencies. We are not the cheapest or the easiest way to get your cave card, nor will we ever be. If you are going to pick your certifying agency by how little dives you have to do or whether it saves you a hundred bucks, then we are not for you. If you want to become, a safe diver that people are going to want to dive with, a diver who is concerned about protecting the cave environment, then we can talk.
Lastly as Karstdvr had eluded to the example of Eagles Nest, just one cave. Eagles nest was explored, mapped, lined, opened, reopened, and kept open by volunteers of Cave Diving associations. Most recently after the father and son perished there on Christmas Day. Volunteers of the Cave Diving associations were called to recover the divers and try to figure out what went wrong. Afterwards meeting with the FWC and hours of work modifying the management plan, all with the goal of keeping it open. So go and dive Eagles Nest and enjoy it, but know that it is only possible because of volunteers from Cave Diving associations.
The picture below is from a meeting with the FWC. Matt Vinzant, Ken Hill, Mike Poucher, Michael Barnette, Rick Murcar, Tom Graeff, and myself.