system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can small businesses have the same name but I can't call my dildo shop Walmart?
gpt
Two small business have very small chance of interacting with each other and most likely offer different services that would clearly differentiate them in the publics eye. 

Walmart is a multinational corporation whose name carries a certain expectation in the public eye. When someone goes to a store called "Walmart" they expect, well, Walmart haha. Branding a store with Walmart on the name creates the expectation that the Walmart corporation is actively involved with that business. Under the law Walmart, or any business, is able to prevent other stores from latching on to their name.