Rosie - if you wear sandels on the flight, you may want to have a pair of sox to slip on while your sandels are in the bin waiting to be screened. Otherwise you’ll be walking bare foot along the ‘sanitized’ mats and carpets till you get through screening and can retrieve your bin from the xray trays. Just a thought.
I don’t plan to wear sandals on the flight for exactly that reason - walking barefoot in the airport is just icky. ;-)
I wore clogs last time - easy to slip out of, but not odd with socks. The only trouble was that I ended up having to run in the durn things, but otherwise, no big deal. So that’s the plan. But I have sandals packed.
I usually wear sneakers on a plane, cause my feets get COLD! But she could look like a real Vermonter, and wear socks with her Birkies. ;o)