> Seems like a no brainer if we care about protecting everyone optimally. This is fine as long as it's optional, but there comes a point where "protecting ever

> Seems like a no brainer if we care about protecting everyone optimally. This is fine as long as it's optional, but there comes a point where "protecting everyone optimally" is in conflict with other basic rights, like not wanting the government to have access to minute-by-minute data on your biological functions. Additionally, if it did work by calling 911, it would probably need to bundle a mobile phone, at which point it becomes impossible to go anywhere without the government knowing approximately where you are.