Don't give up your day job.
Seriously....first, you have to decide whether you want to make shoes or money.
If the latter, work/train in a factory. If the former, you need to find someone who will teach you.
Sometimes it's the smallest and least empirically-useful motes of knowledge, that delight me most. Thank you.
I have a similar problem with fiction all the time, whether books or movies: some tiny detail that's obviously not right, breaks the spell of disbelief momentarily, and spoils the whole thing for a while. An anachronistic turn of phrase. Someone carrying luggage that appears to be empty, or drinking from an empty cup..etc. Sometimes pedantry has its price!
From what DW brought to me today, gentlemen, may I conclude the following statement:
"I care not what others think, but should I wear a comfortable, beautiful, and lasting pair of shoes, I owe the maker not just the payment, but I also owe him a masterpiece, a sacrifice, and an effort. Should I look down, and feel happy, or delightful, about my feet, I know that I owe the shoemaker(s) so many debts, no payments could ever so be enough."
The exaggerated statement above can also be applied to all hard workers of shoe factories such as that of AE, even though, for damn sure, AE quality had decline so severely.
This is all genuine, not copied from anybody.