Thank you @slowwalker for bringing this matter to attention. :c)

I must admit that my first reaction was sadness... but then I got into thinking...

Why 'should' a skilled leather worker learn entirely new skills unless they truly want to?

What if there exist skills related to shoe cobbling that would be in greater demand?

This is going to sound a little nutty... but how about bullet resistant clothing?

Now I 'suspect' that leather is hardly going to stop a bullet (Unsure of cured/soft leather layered in sufficient thickness) - but leather could hold other materials in place that do - and very comfortably too.

Well... that depends on how the South Korean government feels about either commissioning or allowing concerned citizens to purchase home-made body armor.