Behind the Bastards did two episodes on this one if you really want to learn more. https://www.iheart.com/podcast/105-behind-the-bastards-29236323/episode/part-one-that-time-ebays-private-211963285/

There are many rural parts of Canada where A & W is the only fast food choice. I’ve noticed this is especially true for service stations west of Ontario. I spent my twenties living on the road and got stuck eating A & W so much I can only stomach their chicken these days.