Give the Duke of Kent a break - poor chap suffered a stroke a few years ago and is in his 80s now.
Prince Harry is one of those people who always seems to look ill-at-ease in formal clothes or uniforms and that face fungus does him no favours.
I see the Royal Family still refuses to use the Windsor knot - even though it's required in the AP for RAF uniforms. But I guess when it's Harry's grandmother's train set, they're allowed some leeway.
I recall the Admin Order for those attending the Silver Jubilee parade at Finningley in 1977 required Officers to wear gold cuff links with their shirts. I doubt whether the same applied to Sleepy Fred - and I'm glad that I managed to escape it.