Everyone anywhere can receive their paycheck in Bitcoin if they just get strike or cash app... people still accept fiat for payment. As long as that is true, there will be somewhere to exchange that fiat for Bitcoin. Your point is moot. Anyone that doesn't think you can live on a Bitcoin standard clearly hasn't ever tied to. Of course you ca. Not only can you, you absolutely should if you can take a 50% down turn and still have enough Bitcoin to pay for your non discretionary spending.