Oh come on, evidence? Very few of any of us have incontrovertible evidence! Our view of the Royals, if you can be bothered about them, comes from what we read or see on the box.
Just Google 'who runs the royal household' and you'll get all sorts of gossip magazines, tabloids, interviews with former members of the royal household and occasionally one of them spills the beans (which they sign never to do when they join the 'firm') and then they get frozen out forever. I think one lady in waiting of the Queen did so and there was Paul whatisname, Diana's butler amongst a few.
I did once come across a female police protection officer who had worked with the Royals and she did tell me a few stories which I'm afraid I can't remember. They were partly about Charles and Andrew and how petty they are about their personal servants remembering all the little peccadillos of their existence. There was a story of Prince William being such a charming young man when he was underage but learning to drive at Sandringham. Oh, and in private, Charles has a fantastic sense of humour. Is that evidence? What would evidence be?
As for Meghan and Diana, I see them as alike in that they are both innocents dragged into a dysfunctional family who are incredibly rich, badly behaved, over privileged and unable to maintain close relationships with others of the sort that raises non dysfunctional children.
I did read the other day that Kate M and William are giving George the choice of being a boarder or not (unlike H and W packed off to boarding school at 8!) and that he's likely going to a co-ed day school so that Charlotte can follow him and then they are both going to Marlborough, Kate's old school.
Times change, how refreshing.