How to avoid footwear wear and tear?
For what it is worth, you would do good as previously recommended to wear good quality shoes.
Something else I suspect plays a part in all this is the amount of time the particular pair of shoes have been on the shelf so to speak before someone has purchased the shoes in question. Look for the manufacturing date before buying them.
I can buy a pair shoes at one store for about the third the price of the same shoes at other stores. But what I have notice by personal experience, is that the shoes deteriorated rather quickly.
Personally it pays to obtain shoes where the turnover is more common. Shoes will normally have been manufactured more recently. Some stores I now avoid if I want good manufactured shoes.
With all said and done there is no one perfect answer to your question.
The average person can not alter the way they walk, without much training, but we can treat our shoes in order to avoid some wear and tear, but not all.