First aid training questions?

[m173627]

I've got a couple question relating to first aid training.


1. I've got CPR certification and in the course, we went over AED stuff, not for certification though. If AEDs are so easy to use, why are there certification courses for them? What do they cover in the course, its really straight forward, isn't it? You do what the machine says, right?

2. How long/much $ are AED courses?

3. What more do BLS courses cover than CPR/AED courses? Don't CPR/AED pretty much cover basic life support?

4. How long are BLS courses, how much $, and is there an age requirment?

5. Just curious, how comprehensive are EMT-B (Basic/1st level etc) courses, how long, and how much?
I'm in New York.