When talk about tennis, most people’s reaction is money, because for Chinese people, it needs a lot of money to play tennis, so only the rich people can have the chance to be a tennis player.
From the discussions above, it's not so good for children to study a foreign languge too early. Language learning is important but not everyone has the gift to study a foreign language well.
As far as I'm concerned,we should look at both sides of globalization.Only when we seize the opportunity of development and meet the challenges can we gain the upper hand in the competition.