Absolutely. In Theory a business could make an OSM account and just go and update their own details on www.openstreetmap.org. From my point of view this is eas

Absolutely. In Theory a business could make an OSM account and just go and update their own details on www.openstreetmap.org. From my point of view this is easy. But as we have seen by the experience of how bad restaurant websites are, this is a significant barrier for these businesses. I'm not knocking them: I couldn't run a restaurant; it's just different skills and experience. It's on the software people to make the software easy enough for restaurant people to use.