This is a very informative exchange - it's clear that there is a common concern here - the grocery store (as a reference point could be anywhere where the public has to access for essentials). As Bikemike73 says ".....you cannot control the crowds". The frequency of customers at the grocery store - a critical place for getting our essential supplies increases the probability of one catching the virus. In addition, a terrifying point was raised by a member in this exchange wondering "who and how many have touched or sneezed" at your banana or the cheese packet. As a public service in an effort to control the spread of covid-19, the grocery store makes it harder to contact tracing to either inform or be informed by about the covid-19 status. If you offer a bike for sale, it is likely that you will have an e-mail or phone number of the client and if you are the buyer, of the seller.
Let's hope that this terror will end and will end with minimal loss of lives - although at 40,000+ that's not minimal loss. This could have been prevented if someone in the white house at the end of Penn Ave. would have taken this seriously! Note: this is not a political statement, just a public health comment on the government mandate to address public health security for its citizens.