The Dwarfs may have come up with these names themselves, but there is a reason that Bashful has never turned to Snow White and said, "Actually, it's Edward Simone Jr." A lost identity quickly leads to a lost willpower. But we'll get to that later.
The Dwarfs also live together in squalor in the middle of the enchanted forest, which is very suspicious. Their house is so filthy that poor Snow White has no choice but to enlist forest critters to help her in cleaning it. What can they be hiding? Virtually all they do is dig for diamonds and precious gems, but they're a group of men living together in one small house. And most of them have the facial hair of someone who has been alive for a decent number of decades. Even counting in Disney logic, Doc should've at least saved up enough to afford a nice loft in Tribeca by now.
This is what gentrification does to the average working Dwarf.
"It ain't no dig to get rich quick." We're with you there, Dwarfs, but why aren't you guys living in a mansion or, better yet, your own mansions, because you're all grown-ass men? Also, remember that their tiny cabin is a dump. When you're surrounded by deer, and the most famous member of your group is named after how unfriendly he is, it's probably hard to hire a decent cleaning agency. But shouldn't they take it upon themselves to do a dish every once in a while. Even the Dwarfs in Lord Of The Rings never let it get that far. This would imply that they're too tired from mining all day to bother with it, but why not just take the afternoon off and sweep? What are you saving for, you morons?