If we are to make a gross simplification of things, tea is to China as Coca-cola is to the rest of the world. The Chinese love affair with tea (whatever kind it may be) trascends history, age group and other prejudices; it is not strange, thus, that they have developed and perfected the cult -- the way of life, even! -- that revolves around tea.
Here's me and my family having a crash course on Chinese teas during our trip to Beijing, China some months back. Cheers!