Dude.
Have you heard of this great company called Fed Ex? Or another one known as UPS?
For years they have been safe, reliable, dependable and cost effective ways for people to get packages they need.
DUDE: Have you heard that the medication vendors determine what mailing service is used? Seemingly the USPS is the least expensive, so that is what they use. It is not a choice (and should not be a cost) of the recipient.