My sister has always been notoriously hard on footwear, despite being a tiny little thing. I don't know what the heck she does to beat up these shoes! I, however, still had a pair of ballet flats from 1981! I had to throw them out 8 years ago when the soles started to come off/wear through & there was not a reason to re-sole them.
So, what's your oldest pair of shoes? Not baby shoes! Something you can or do still wear