In my primary school, come the start of the summer term all the girls (in my class anyway
🙂 ) would switch from shoes (mostly Mary-Janes as I recall) to flat, strappy sandals. One girl though always chose to wear flip-flops...
As with most schools, kids pick their seat at the start of the year and pretty much stay there the whole time, sitting next to their mates. I was fairly average, maybe a little quicker with my work than most, but come time for Maths lesson I was way ahead of the rest of the class, and I always chose my seat so that from where I was sitting I had a clear view of this girl sliding her feet in and out of her flip-flops; all day, every day, right through the summer term, and the beginning of the autumn term too. It gave me the motivation to work even faster - the quicker I did my work, the more time I could spend watching her feet in those sandals (and because of the seating arrangements, she was side-on, so she couldn't see me staring at her feet all the time during the summer.
😀).
Of course, I didn't know what a foot fetish was then, but I still had a foot fetish anyway. I also fantasised on occasion about tickling them, but I couldn't work out why for that either.
It was the same every year. Ah, those were the days - then I got sent to a blasted boys-only secondary school.
And when I moved to a mixed school to do A-Levels, the only girls wearing sandals were the 11 year-olds, which just didn't feel right. O well, c'est la vie.
Also in primary school, I would sneak peeks at the oft-sandalled (during summer) feet of my sister's friends (she and her friends were in the year above me), and of my sister too - though being attracted to my own sister's feet creeped me out just a little.