Am I the only one who thinks William is doing his stints in each service at bit too hastily?
Evidently, yes.
Charming sentiment, but it has been decided that his time as an Heir to the Throne is better spent in public service, rather than spending his time as you suggested.
Also, you assume he actually has a choice in the matter.
The way I see it, he is sharp and has the capacity to ascertain much more than most his age would given a similar timeframe in which to be part of HM Armed Forces. He has done well so far, deserves his RAF wings, and best of luck to him in the RN.
He is a credit to the nation, and those that take a different view have either not met or worked with him.