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AT&T tries to defend why it shouldn't let you unlock your phone sooner
(www.androidauthority.com)
This is a most excellent place for technology news and articles.
It'll lead to higher prices meaning they'll charge more lol
https://crtc.gc.ca/eng/contact/phone/q19.htm
Canada:
First, locked phones are a thing of the past. Effective December 1, 2017, service providers will have to offer unlocked devices to their customers.
What are the benefits of having an unlocked device?
An unlocked device can be used on other networks, which means that you will be able to switch providers and keep the same phone. That means more flexibility for you, the consumer.
I want to reiterate this. Even second hand phones. Find the carrier and call them. They legally have to oblige.