Most Wal-Mart greeters are extremely old people dressed in a bright company shirt who wave a hand and smile and welcome you to Wal-Mart.
It’s a job that could be done with a sign or a robot, but the old people turn out to be cheaper.
Especially if you only hire them for a few weeks as a “greeter contractor” so you don’t have to pay them health benefits.
Sure, it’s rather scummy, using them up and tossing them aside, but in Wal-Mart’s defense, it does get boring seeing the same old old person there at the door, greeting me.