Question reg "clean" vs "unclean" ac

Sylvain wrote:

interesting the somewhat weird ideas that float around amongst
the public about airport security... took up a passenger not
long ago, her very first flight in a 'small airplane'; she
was astounded (and a little bit worried) that I did not ask her
to remove her shoes somewhere in the process...

may be I'll include a shoes removing routine to my passengers
briefing if it helps;

With the new leather interior in the Super Lancair ES, we take our shoes
off before getting in... Did the same thing with a super detailed Yankee
one time, forgot I'd powdered mine that day...