People say that if Murray wins a slam a lot of British will start playing the game which will potentially pave the way for more British champions. People say that something like a million rackets were bought in China when Li Na won so a similar thing will actually happen over there. No it won't. If a kid is old enough to watch tennis on TV and understand what is happening on the screen (and thus be inspired by it), he/she is roughly 4 years too old to start training to be a tennis star. You need to start holding a swinging away from the age of 1.5 years. The best tennis players didn't decide to play tennis - their parent's pushed them into it before they could even think let alone walk.