Crumbs
Teenagers are effectively energy sinks. Their bodies are building adult frames. Their brains are rewiring as their frontal cortex comes online, a process that consumes about 20% of their excessive calorie intake.
Growth spurts, muscle development, and hormonal surges all add to the demands. As does a diet of pure carbs.
Social grace in teenagers is rare because manners require emotional regulation and perspective, skills still developing in a brain dominated by the amygdala. Social separation from adults, exposure to social media and peer-driven culture make things worse.
So its best to give them the benefit of the doubt and just pretend it didn’t happen. After all, they will; they’re certified goldfish.