[jariel]

1) Canada post is a crown corporation and is effectively subsidized [1]. It's existence is guaranteed, it effectively cannot go insolvent, as such it receives considerably better terms of business than otherwise. And more.

2) "its a business that enables other businesses"

Almost all businesses 'enable other businesses' - this is absolutely not a reason to subsidize package delivery.

In fact, it's the opposite of a reason.

If there is a reason, it's to ensure some kind of common mail delivery particularly to remote outposts.

[1] https://lfpress.com/opinion/columnists/canada-post-back-to-a....