"Teacherjh" wrote in message
...
But would that same person be better equipped to handle a DIFFERENT 172
(for
example one he rents after travelling commercially)?

I don't see why he would. But I also don't see how that's relevant to this
particular train of thought. CJ's original comment was specifically
regarding owners flying their own airplanes, and was in response to a person
claiming that "most people don't actually know how to fly THEIR airplanes"
(emphasis mine).