What else can they take away from economy class at this point?
Air France, Lufthansa and BA all have carry-on included in the fare.
If by "any European airline" you specifically mean Ryanair, then yes. We can expect people to pay if they did not print their boarding pass themselves.
But that's also true in North America.
Last I checked, Air Canada was not advertising themselves as low cost.
(Btw, transcontinental is an American term that confusingly means from one side of the US to the other, and not 'between two continents')