Ozgrade3. Plenty of C172s, 182s etc were sold to rural property owners. Schutts at Moorabbin for example. John Correll when employed by Schutt’s used to fly a newly purchased aircraft to a farm, declare a training area and stay for about three weeks teaching the owner to PPL. John went with his own advanced training school and would speak of those days when GA was growing quickly.
I take my hat off to the modern day instructors and flying schools, towards the end of my own time as instructor and flying school owner the ridiculous paperwork was just starting.
No one would really object if there was good reason and better results but we all know that, if anything, the opposite is true.