All this talk about stats ( and the stats them selves don't amount to a
hill of beans) I drove 5k to 6k miles a month that's 60k to 72k a year. At
the average for most people of 15k a year that made me 480% more likely to
be in an serious accident. Number of accidents I was involved in "0".
Keep your head, know your limits and that of the aircraft and respect the
weather and your can reduce your risk.

What I do when they finally agree to come flying is I make sure they know
why we preflight and what to expect even when only taxiing. Most
important gentle turns and maneuvers. Remember these are people who are used
to seeing the bulk head separating them from first class, and not all the
visual input from a light plane.

You might also arrange with your FBO to taxi an airplane to the fuel pump
and have one of your friends come along , sort of an introduction to a GA
aircraft. worked for me in the past.