Really? That’s sad that this seems unrealistic! I think this is still the time that the kids I knew and the ones I know now did/do have the right nutrition. Right nutrition for their development. I would say it starts to go off track around early teens/preteens when kids are having a lot less supervised times, access to pocket money, body image issues etc.

But idk I’m not in the US, maybe it’s a US thing. Not saying kids don’t have sugar and shit here but the “right nutrition” doesn’t have to be extreme though it is a vague term.

Personally I grew up malnourished and still am but that’s due to medical issues. I’m jealous of how well everyone around me was raised to eat a balanced diet 😅