[SigmundA]

Again here in FL dragging sandy bottom is pretty common and most of the time no big deal, maybe scuffing your skeg. Many times what happens is you're out of the channel on a plane no problem, then you slow down come off a plane and oops the water is too shallow and your lower unit /prop hits being the lowest part of the boat.

Hitting a rock might bend your prop and you might need to replace, many carry a spare prop on board as it can be replaced relatively easy even out on the water with an outboard.

That same situation with a foil boat would be disastrous, again just one very expensive and dangerous mistake.