How should we talk about Canada Post? For many Canadians, the conversation might start with complaints about its clunky online system or waiting forever in line at a service point, likely tucked away inside a Shoppers Drug Mart. For some, there will be no debate at all as they question why we even need a postal service in the era of email, Amazon, and four-wheeled—and sometimes two—gig workers dashing about delivering meals and sundries while ou…