World,
I think there's nothing wrong whatsoever with the IB. This too would be a fine choice (and perhaps more recognisable through Europe). However Josh is a UK student in a UK school (in as much as we are aware) and as such would probably go through the more usual route of taking GCSEs (at age 16) then A levels (18) before moving on to an undergraduate degree!
Anyway, I think the point is that you're clearly advocating continuation of study beyond 16 - which is what we were all saying anyway!
this emoticon may also prove appropriate in this thread....
