Please humor me, and an honest question. And please be honest. Do you have kids? How many?
It's neat to see those specific strategies called out though - I can immediately think back to times when I tried that and realize, "ohhh, so that's why it worked so well." Should help me focus more on those strategies.
The third one broke us. We got to the point where both me & my wife were begging her, "come on, eat this, it has lots of chocolate!"
All these kind of advice works... until it doesn't. Yes, many parents don't know how to handle their kids. It's also often genuinely hard - I learned to not judge people for "not doing the right thing", without knowing the full story.