The reason to go ahead and have that high protein breakfast is that it helps steady the blood sugar roller coaster, and provide the fat & protein necessary for satiety & a growing body & brain.
Me, personally, when I know a lot of sugary crap is going to be available, I eat a lot less of it if I fill up on a solid protein & fat real food meal before I go. I'd do the same for my child if I couldn't forbid him to eat the crap at school.
5'4" 39yo mother to five sweeties & married to their AMAZING DaddyGrok
Current Weight: 175lb__________________________________Goal: 135lb
Deadlift: 240lb________________________________________Back Squat: 165lb
Bench: 130lb__________________________________________Pre ss: 85lb
***Winning a 20-year war against binge eating disorder***