ranger979:What I find interesting is why the diving industry makes it such a taboo while other equally or more dangerous activities don't seem to make a big deal of it, climbing, flying, backcountry hiking, etc.
The dive industry does lots of strange things.
I think this is why most new divers will ask why solo diving is so risky. The original poster mentioned a specific set of very conservitive dive paramaters and compared it to the risks of snorkling solo. Most of the same risks mentioned for scuba would also apply to snorkling, yet no one mentioned, although Rick alluded to it, that you shouldn't be solo snorkling either.
I don't know about any one else but I didn't mention snorkeling because it wasn't the topic of conversation. When I taught free diving though I taught it using the buddy system.
The buddy system is generally a great system and could eliminate a lot of unnecessary death if used throughout your life. Let's face it, heart attack, stroke, hitting your head on a rock could happen as you walk to the bathroom, well maybe not the rock thing, having a buddy could potentially save your life. If someone did a detailed study they would probably find the woman have fewer bathroom related death because they are more likely to go as a group. The point is, you need to look at the risks and decide what risks you are willing to take. Some of these risks you are going to think to minor to worry about and take.
The big difference between a bathroom accident when your alone and an accident under water is that you can breath in the bathroom without needing to be consiouse to keep a reg in your mouth and needing breathing gas in a tank. There is inherantly more time pressure associated with underwater problems.
Other than that your right. We have young barely broke horses and I rpefer that my wife doesn't get to ambitiouse with them when she's home alone. You could lay out behind the barn for a long time before some one found you.