Shoes degrade more quickly when used daily as they don't have time to dry properly and such, thus rotating is good. For example, you can get 2 pairs of shoes that'd normally last a year, but by rotating them you can double their lifespans.

Still got shoes I got 5 years ago which look great besides the slight dirtiness. Those would've broken years ago if I didn't have rotation.

Edit: Forgot to add that you can just go for some reputable brand shoes you like, get 2 pairs of those and switch them up every day (can get different pairs as well). Mostly just focus on comfort