system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: For some people, why do their shoes crease more noticeably over time when wearing their correct size? How can it be prevented when wearing the same shoes everyday and not walking like a penguin?

On the train, on my way to work I have seen leather shoes that look like as if they've had them for years because of the wear and tear, but no crease whatsoever. And I cant go 6 months without my leather shoes looking like wrinkly old farts.
gpt
Lots of care.  Consistent cleaning and oiling, visits to the shoe shine guy, etc keep shoes looking new.  There are also different grades of leather that will age differently.  The $50 pair of slip-ons you can get from a department store are going to crease a lot compared to a higher end shoe that has better materials and has a better anatomical fit.