I think what is missed here, by many people, is that they probably loved every minute of it. These kids are not stupid, they know they're going to get beat, and beat by many goals, but do you honestly think they'd trade any of it? No chance.
Think of yourself, if you're a really good soccer player, would you dread playing Italy, because you're going to get beat by 10? I know I wouldn't. I would get out there, play as hard as I can, and go home after and tell everyone that I played soccer against Team Italy. Did I get throttled? Yep, sure as hell did, but it was great. I was out there against the best players in the world.
The kids that get pissed when they lose are not the ones that are heavily outmatched. Not the ones that know they have no chance of winning, and lose badly. It's the ones that DO have a chance, but lose. The kids from Russia, Sweden, and the US, when they lose, they feel it. My guess is the kids from Denmark are having almost as much fun over the next two weeks as the team that wins the gold medal. this isn't a dreadful experience for them. It's one of the most thrilling experiences of their lives.