It makes less sense for them to disappear from reality, then obtain the sand, Lima. It also detracts from your overall experience when you are now on lordofthecraft, and not playing as your character. That is the point of the server. Play your character, ditch ooc.
lol immersion vanishes when the lord of a town or druid or mofucking skeletor necromancer becomes a coal miner anyways, relating minecraft gathering to immersion is ridiculous, if people still want to RP as commoner/peasant craftsmen/gathers then they can do that just fine in the main world