Edited to add: Jane Fonda was interviewed on Armchair Expert and mentioned that she rode a horse to school.
In: 6
My school had a pony paddock that students could turn their horses loose in during the day, and a shed for stashing saddles, most kids would just ride in bare back with a lead rope rather than a bridle though.
Might not count as back in the day though, this was rural New Zealand in the 90s lol
Latest Answers