SueDonim
^I didn't expect anything of Kate. Except perhaps to have brought up a better behaved child that didn't need spanking^
Ah yes, blame the mother. She’s the only person involved in raising a child. The father has no influence, neither do siblings or school and nursery. 
If that’s the worst that Louis ever does, he’ll be a paragon of virtue compared to many small children. All that noise at the parade would have sent me potty, tbh.
Half of the under-fives in town here on Saturday seemed to have been afflicted with whatever was bothering Louis. I’ve never seen/heard so many tantrumming children at one time! None of them were hit around by parents, that I could tell. Some parents were trying to reason with their child (as if you can reason with a 3/4yo if they don’t want to be reasoned with!) and another resignedly tucked their screeching child under their arm and carted them away.
OK then. I expect that the Royal Household, with all the resources at their disposal, would have the wherewithal to raise children who could be relied on in public to not behave in unacceptable ways, showing disrespect to their elders. Even if they are only four.
I would have expected the Royal Household to have planned out various scenarios, and have a contingency for when any of the children got over tired (or whatever the excuse is) so that they could leave the stand for a while.
I would have expected the Royal Household not to expect the 4 year old to sit through all those marching military people but to come into the seats when the lively and colourful part of the parade came along.