It isn’t their choice of bedtime, it’s the rule that when in the company of the Queen, neither her family nor any other guest, is allowed to ‘retire’ before she does, and when she puts her knife and fork down, so must everyone else, regardless of whether they have finished their meal or not. I’m sure the Queen will try behave reasonably in these circumstances, but the fact remains that these outdated rules still apply, and the Queen hasn’t got rid of them. In fact she made the curtseying rules more difficult to follow only a couple of years ago. A non blood Princess ie Catherine, must curtesy to a blood Princess ie Eugenie, unless the non blood Princess is with her husband, in which case the blood Princess must curtesy to the non blood Princess, because of her husband’s higher rank. Is anyone seriously going to tell me that this isn’t absurd?