[sillyquiet]

Point 3 is the key one - soles, especially. Rubber soles weren't a thing - they were made of leather (or sometimes textiles) and they wore out in a matter of a couple months or even a few weeks with heavy usage, especially give point 1. Point 2 isn't really the case - your later period and fancier pointed-toe, lace-and-ribbon-bedecked shoes for the higher classes took probably some time, but a pair of common leather turn-shoes can be made in a couple hours.