Where are come from(Poland) you have to learn how to do CPR as a part of your driving test - in case of an accident you are required by law to stop and help, so it's only logical that CPR skills are required to get a driving licence. So most people know how to do it, they had to learn it to be able to drive.
Same in Germany and possibly more countries in Europe. And here in Germany there are also special courses for giving first aid to children available to parents at low to no cost.
I've had CPR training here in the US four times now, and I think two of those times were free (Boy Scouts, school, and, I think, Red Cross, but I had to pay for scuba rescue diver.) There will be some exceptions, but almost anyone who would claim that cost is the reason for not doing it is someone who wouldn't bother even if it were free.
