Depends where you live. We have slate in our bathrooms - foyer -
kitchen. It feels great on your feet in the morning - we live in
Florida. As one gets older - it is more stable on your balance to have
tile or wood - instead of carpet. Also carpet builds up dirt - pollen -
and mold - even when you clean it often.

Currently my home is half tile - half carpet. I plan to swap out the
carpet with wood shortly.

Harry