We, as humans, have Barbie dolls, so it's not that freaky!
Barbie dolls aren't very realistic though...
That's because she's obviously had work done.
Who said the Minifigs were realistic?
Lots of things are made from Lego bricks in the world. The stores probably sell bricks, studs, and the like, not minifigures. In fact, you can break some of the set boxes and they yield nothing but bricks.
Another possibility is that it's for the Minifigs what Rite-Aid, Walgreens, and the like are for us.