There is plenty of tech out there that can &quot;save lives&quot; but the market has steadfastly refused.  How about &quot;No seatbelt, no car move&quot;.  They tried, but given how many americans refuse to wear seatbelts it has never made it into a product.  An enforced &#x27;Drunk mode&#x27;, presumably with some sort of breathalizer interlock, would be far more disenfranchising and I have to believe would also be rejected.