what works well with barefoot shoes is they can use rubber or a rubber mix into the outsole compound rather than using a fatass foam midsole (EVA/Polyurethane) that either also functions as the outsole or uses a thin rubber compound at the bottom.
Look up Danner Boots for a perfect example of this. A 3-5 pound boot that uses a vibram kletter outsole. Some of their boots use a thin vibram kletter outsole. Pic related is normal vibram kletter.
With eva foam which is most running shoes, the shoe shop and 'experts' will say the foam is shot by 500 miles and you need to buy a new one.
In contrast, Xero warranties their outsole for 5000 miles. I'd love to just own something that is leather and rubber, and that is where vivobarefoot has their offerings.
the trainers your dad still owns from before the 21st century were using rubber compounds and not the foam shit that the industry is addicted to today. And even if you do need them, I use the $4 ones Freet sells and its all the cushion I need.