Shoes still produce way less tire pollution than bicycles
Do you have a source for that? Because that doesn’t match my experience at all, especially if we measure by wear per mile. Plus, shoes are a lot more finicky than bike tires. If they’re not a good fit or if the wearer has bad walking habits, they’ll wear out prematurely and end up in a landfill with a lot of rubber left. I tend to wear out the balls of my feet, for example. To do the same with a bike tire you’d have to be downright abusive, locking brakes on pavement and stuff