USPS to Test Delivery of Groceries

The idea has been suggested for years, now finally the Feds have approved a test.  Why not?   " ... Federal authorities have given approval for the U.S. Postal Service to commence a two-year test of a customized delivery program for grocery e-tailers. .... The USPS began operational tests on such a service earlier this year in partnership with AmazonFresh in San Francisco. The Postal Regulatory Commission approved a further test allowing for USPS to work with retail partners to deliver bins of groceries to customer homes between 3 and 7 a.m. ... "