"In the car ride over, however, the importance of the meeting sunk in as Harry asked Meghan, "Do you know how to curtsy?" She told Oprah: "I thought genuinely that that was what happens outside. I thought that was part of the fanfare. I didn't think that's what happens inside. I said, 'But it's your grandmother.' He goes, 'It's the queen.' That was really the first moment that the penny dropped.""[0]
Per her telling of the story, we may concluded that Harry really never had a grandmother like many other people do. It seems it's always been 'formal' in the royal family. That the ideas of duty and royalty have come before family. That's not a life that I would want to live or a family I would want to have. That said, their wealth and privilege may make up for it. But it's not perfect.
[0]https://www.popsugar.com/celebrity/meghan-markle-oprah-inter...