FWIW Federal minimum wage wouldn't change instantly, but would be distributed across many years. For example technically San Francisco passed a $15/hr minimum wage last year however it is going to happen incrementally so the minimum won't actually reach $15 until 2018. Personally I think the Federal minimum should go to $8 but be permanently pegged to inflation there after. Then state and local governments should pass bills to protect their respective citizens. It just doesn't make any sense to hold a business in rural Kentucky to the same standard as a business in SF because the cost of living is like 1/3 as much.