Why are princes Charles, Harry, and William always wearing military uniforms even though they're obviously not on any kind of active duty? ~

Dress uniforms look cool, and given how royalty historically were the only people who had enough resources to make proper armor and a sword to begin with, it makes sense that they'd be keen on keeping that tradition. Plus, the Royals seem to have some history of military service.

All that said, Prince Andrew can fuck right off with this "I demand to be an admiral at the funeral!" mess.