[jimworcs]

It seems like you have locked onto Air Canada as being at fault, but don't seem willing to accept your part in this.

I think it would be helpful if Air Canada put information about this on their website, but these changes are dynamic in nature and the rules change frequently. If you think about how many countries there are in the world, that is how many different sets of regulations they would be required to monitor. That is just impossible to keep up with. Canada does not require a visa for all nationalities.. some require it, others have a waiver or special arrangements. These are often related to the numbers of people travelling who enter illegally or claim ayslum, or for political reasons.

Either way, you don't seem able to listen to advice, or take any personal responsibility. By the way you have responded here, I can imagine what you would have been like at Heathrow, so unusually for me, I have some sympathy for those Air Canada staff who were probably trying to explain the rules to you and tell you what to do.... and you were no doubt focussed instead on telling them it was all their fault.

People who don't listen, or can't take advice or personal responsibility tend to be the people who repeat their mistakes.... so I look forward to your future posts raging against all and sundry.