Ashley do you remember when you got your first Bearded Dragon last October? You had just about as much experience as she does, with a more high maintenance animal to take on.
I find dichotomy in your statements and actions. It's ok for you to buy a beardie with little or zero experience, yet you are in no simple terms telling this girl Desiree that she isn't experienced enough to make decisions for her own animal? She seems to be doing just as much research as you did.
It's been made very clear that babies don't do well on sand, but neither do your leos look like babies to me. They look like juveniles, almost adult size. I could be wrong, I'm just assuming that they were all the same size as yours.
It's also been thoroughly agreed that Calci sand is NOT the way to house any lizard for reasons already made.
I didn't read where Desiree said she bought calci sand... but I could be overlooking that.