Kharon
Contributor
... There are plenty of areas that have sandy areas that can be navigated on close to the reef that are perfect for a new diver. Close enough to see it well but still over sand, ... An easy slow drop to a shallow depth over sand with patches of coral around is the perfect place for a new diver to gain experience, there are a number of sites on Bonaire like that. ... Simply don't take them over the reef until their buoyancy is up to par. If they are reasonably well trained and with a good buddy, this shouldn't take long but until it does just stay in the sand.
I guess you are unaware just how many fish and other creatures live in the sand. Bashing onto the sand is no more acceptable than bashing into the reef. Talk to a marine biologist.