I understand, Kevin, the mooching could be a problem. Hopefully with the right information they won't have problems and will be self-sufficient all day. I see a lot of problems leading Meetups so that sort of prompted writing the piece. I'm hoping it'll help for those who could use it.
To respond to the specific points mentioned by Tom:
1. Regarding breakage, that is our number one problem with all the gear we carry isn't it? That is the one thing besides the weather that can spoil our best laid plans. Stuff can and does fail. I prefer Platypus because it is really heavy duty, much more so than CamelBak. I inspect it before each use, and I do what I can to prevent something from happening. I always carry a foam bedroll inside my pack so the bladder is well-protected from my other gear.
2. That's what the article is about. Preventing it from, dealing with it if it happens, and what to do if all else fails.
3. A preferred water temp is nice. A luxury. I don't get it in the summer, my water is always warm, and in the winter I start with room temp water and it gets nice and cold by the afternoon. It doesn't really bother me, though.
4. Variety: I pull the backup bottle out of my pack and add a Nuun or some Gatorade if I want to I guess.