No one in this entire thread has said either one of those things.I don't understand why outdoor enclosures in areas that have naturally sandy soils are acceptable, but if someone scoops that up and puts it in their inside enclosure it's suddenly a death sentence?
Sometimes tortoises in captive conditions with naturally sandy soil DO get impacted and die, but its definitely not an automatic death sentence. Indoors it poses more of a problem because of the smaller size of the tortoises, and because nearly every meal will end up with sandy substrate stuck to it.