"Emily" wrote:
I'm familiar with the regs. But how many owners are actually
supervised by an A&P?

All that I know of. I don't know *anyone* who does anything other than
legal, preventive MX on their own airplane without being advised and
supervised by an A&P, and most have the A&P check the preventive stuff,
too.

How many actually know what they are doing?

Depends what the job is. If it's turning a screwdriver, *all* know what
they're doing. You don't have to be a rocket scientist to clean things,
either. Other things vary.

Either you just have a really LOW opinion of the airplane owners in your
area, or the owners there are very different. Is there a shortage of
A&Ps there? None of the owners here are stupid enough to do work when
they "don't know what they're doing" on an airplane they and/or someone
they love are going to fly.