My honest opinion? I think there are too many labels out there. And I have never heard of a G&T in sport classification before. There seems to be a new one every few months.
HOWEVER ... DH and I are both sporty and encourage our children to be into sport. If someone approached us and told us DS was exceptional in sport (he is good at all sports but not necessarily exceptional) we would definitely encourage it and channel it.
Yes, the govt may be clutching at straws in view of the 2012 olympics but if someone says your DD is good at sport why not encourage it? You don't have to build it up or build her up but you could at least see if she is into the idea of getting into some kind of sport.
I think it is clear by looking at the successes of most World Class athletes that in order to be exceptional at a sport they all started young (Didn't Tiger Woods start playing golf at 3? What about the Williams sisters? Steffi Graff was playing tennis at 4 etc etc) I don't think you will find many world class olympic athletes that only took up their sport in their 20s.
I don't think it is a bad thing for the British Govt to be on the look out for talent at young ages. Personally I think it is a good thing and about time - this is what happens in the US and in Eastern European and Communist countries surely?
It would at least give the Brits a bit more of a chance of getting more Gold medals in the Olympics and people would moan less about the Americans and the Russians getting all the medals.
Of course, you could argue the point that young children would be under too much pressure when training/they would lose out on childhood/they could burn out early etc etc and then you would most probably be accused of being an awful pushy parent because your child is good at something (which is something I can't stand about society) but you can't have it both ways really can you? If you want more world class athletes you need to start them young.
But I digress - only you can know whether you want to persue this or not. I would go to the Junior Athletic Education Day and take it from there if it were my DD.
Sorry for length of post xx