Two things: wagging a finger at a child is considered aggressive (I volunteer in a children’s hospital and we had basic etiquette training). You’re meant to do the stop motion with your full hand. It’s firm but not upsetting. Before meeting kids Harry should’ve had the same basic training. 2nd: A drag queen said the royals never blink not even when he went in drag to the palace. Posh Brits take everything in stride. K is doing that with MM. MM is a sideshow but K will just stay calm and carry on