Yes, Trump should follow the example of Canada and other countries who believe torture is always wrong. It was banned in the U.S. during Obama's administration and that policy should continue. It is an ineffective, unnecessary and inhumane act and we should not be participating in any such nonsense in this country.
Canada holds the belief to not use torture and Trump should follow that same attitude. But Canada has not participated in the number of wars that the U.S has and so we have more prisoners and war crimes to deal with. Is it not likely that Trump will soften his attitude based on the cabinet selection that he has made so far.
Not only do top CIA officials say that torture is not useful, it puts American troops in danger. For if we say that we allow torture it helps ISIS and Al Qaeda recruit for its armies it also puts at risk our military if captured for they are more likely to get tortured themselves.
Donald Trump is president of the United States, not president of Canada. Trump does not need to follow Canada's example when it comes to determining what is constitutional or not. Trump gets to decide which laws he will sign to govern the United States. He does not need to look to Canada as an example.