Air P
I didn't rumour that Prince William decided for himself, merely commenting that the reason for not wearing RAF uniform was that it is bland. Perhaps that is the view of 'higher management'.
For the record he did not become Colonel of the Irish Guards Regt 'that day', but on 10 Feb 2011 (wedded 29 April).
His father and uncles all managed to get married wearing the uniform of their then current Service and rank despite holding higher honorary ranks.
Regards
Batco