My ancestors are from Asia. Over there, a saying goes something like this if I can translate it without the color of the language: "Give a man a solid breakfast and he will not make noise around the kitchen rest of the day". Even less colorful way to say it is if you want to be healthy, start with a healthy breakfast.

As much as there are all the science around low carb diet and optimizing calories, macros and what not, I think there are some wisdom to it in the long game view.

Someone that had a good nutritious breakfast (you will notice every major culture has its variant of breakfast akin to "English breakfast"), would have less difficulty resisting food with empty calories and doing frequent snacking. Contrary, if you had packaged "cereal" with questionable ingredients and nutrition density, no wonder by 11 you will feel the need to snack. And then if you happen to have a lunch in one of the typical take out restaurants optimized for cost at the expense of quality, a 3pm snacking is more likely than not.

By the end of the day, you had racked up calories intake with bunch of empty calories from those snacking episodes that could be entirely prevented with a solid dense breakfast.