I haven't actually got my dragon yet, been doing all the research I can before I take that step! :study:
I'm building my vivarium, had my heart set on sand for parts of it. But thanks to threads like this one I've reconsidered. Someone mentioned sand looking good aesthetically, but when you think about it... that is really quite selfish. If I'm honest, that is why I wanted to use sand. It looks 'natural', but as Em pointed out baked earth and rock is the Real natural terrain for beardies. So I am going to try recreate this using a tile mosaic!
Back on topic, I guess it comes down to personal experience and belief. Some people pointed out that they have never had a problem with sand. For me, as a first time owner, I just asked myself - if it was worth the risk? The answer is no.
Better safe than sorry eh?