Marx wrote: why to roadies seem to regularly take their shoes off when they're not riding their bike? Even just to have a coffee.
Potential damage to cleats while walking in them.
Potential damage to self - cleats are slippery, and on some cafe floors, they are quite dangerous.
I use cleat covers. I have used Kool Kovers:
and currently use the Shimano ones:
Apparently they are considered very "non-pro" for my image. It's also exceptionally hard to clip-in if you forget to remove them.