The primary motivation, in a supposedly international setting, is indeed to win for your country. Big issue here - these players stand a decent chance of playing AGAINST their own country. As far as the players wanting to "stick it" to the older guys, I doubt it. These players weren't even cut from the other teams, they simply weren't eligible. If these teams were to play, big psychological edge to the Canadian or American team... older brothers will do anything to avoid losing to younger brothers. Younger brothers just hope they can win.