'No' is the trigger, not the tantrum
The candy, the screen, the toy at the store — the specific 'thing' is rarely the real thing. It's the experience of wanting something and being told they can't have it. That's a big feeling in a small body.
The limit stays; the feelings are welcome
You can hold 'no' with warmth. 'You really wanted it. I hear you. The answer is still no.' Say it like you love them, because you do.
Why caving teaches the storm
If the storm changes the answer, the storm gets bigger next time. Kids need to know your yes is a yes and your no is a no — that's actually safer than a wobbling ground.
The disappointment IS the lesson
We don't have to protect them from wanting-and-not-getting. That's one of the most important muscles a human builds. Your job isn't to remove the disappointment. Your job is to sit next to them while it moves through — so they learn that big feelings don't break them, and they don't break you.