My parents required us children to learn cpr around the same time they gave us our first .22 rimfire rifles. Around 9 years old if I recall. I've taken a couple refresher courses since then though.
The cpr techniques have been modified and then re-modified back into something similar to the original method, unless I'm mistaken.(?)
Defibrillators are pretty darn expensive, it might be possible for me to order one through my neighbor who is an RN at a local ER for less than retail. She would also train us in it's use but she drew a blank when I asked her the particulars of the units.
If taken care of properly, how long do they stay reliable?
I'm thinking of keeping one in my work truck, I could bring it inside every night like I do with my cell phone.