In my high school the drama class would make you change your shoes before you went in and if the girls would often put socks over there tights come summer time but there be no tights so good few times in that class I did see a lot of feet being tickled and felt mega awkward
Pe as well if you never had your stuff they would make you do it barefoot did see
A few toes getting stroked here as well
Thing is never done it my self to anyone only really tickled girlfriends or
Sexually partners never realy done it
To a random
I've witnessed and joined in on a lot of tickling when I was in high school and college.
I remember when me and a friend of mine rolled up his girlfriend and her friend while they were laying on the mat during gym class. Then we pulled their shoes off and tickled for feet while they desperately tried to break free, it was hilarious. It was two of my more ticklish female friends as well.