[surfer]

So lousy result, not even a Single medal, you still praise them.
If your kid get lousy result in school.
You praise your kid or scold your kid.
Very hypocrite if you dont criticise them.

You've added the remarks about your kid. 
My opinion .... if your kid get lousy marks in school, yes you can criticise your kid. But at the same time you have to encourage them to do better the next time around. You don't add additional pressure or stress them till depression crops up. modern times now different from our time where our parents leave us to do what we want. It's a pressure cooker society now.