Same way California auto standards impact auto standards across the entire country. California is the most populous state with a higher disposable income. At so

Same way California auto standards impact auto standards across the entire country. California is the most populous state with a higher disposable income. At some point, creating a product specifically for 12% of the US population with money to spend while maintaining a separate product for the rest of the country becomes too much of an economic burden and the standard gets applied across the board instead.