But the prohibition doesn’t stop teens from drinking, just makes it a crime.
So, this just invites the same perennial arguments frequently made in relation to drug decriminilisation.
On my part, had the drinking age been 21 where I live, I wouldn't have started drinking until I was 21.
IMO the government should not be in the business of policing one's health, or advocating for the people's health, as the USDA and associated agencies are demonstrably corrupted.
[0] https://www.cdc.gov/nchs/fastats/obesity-overweight.htm [1] https://www.usda.gov/farmbill [2] https://pubmed.ncbi.nlm.nih.gov/12513041/#:~:text=Conclusion.... [3] https://www.hsph.harvard.edu/nutritionsource/healthy-eating-...
1. The government does care about overweight/obesity; it comes up a lot in discussing issues with the healthcare system (https://www.cdc.gov/obesity/data/adult.html). A lack of regulation isn't the same thing as not caring -- for example, there's no regulation requiring Americans to get vaccinated, either.
2. Farm subsidies seem unlikely to be a problem.. it's not like access to food makes people obese -- in fact, the opposite seems to be true (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5781054/). Usually affordable-food helps folks eat better rather than more.
3. The US government's dietary recommendations not being a copy/paste of another set of recommendations isn't a meaningful observation... why would you think otherwise? For example, are you under the impression that someone following the US's nutritional guidelines would be worse off for it? (In case you're not American: the problem isn't the guidelines, but rather that most Americans don't follow them.)
4. The US government's call to regulate teen-drinking was based on a historical uptick in drunk-driving accidents when the drinking-ages were relaxed (https://en.wikipedia.org/wiki/U.S._history_of_alcohol_minimu...). This is, the argument wasn't based on a teen's personal health but rather people were crashing cars on public roads, which is definitely a reasonable concern for a government to have.
You really don't know then. As someone who lives where it is 21, I'm qualified to tell you that you're very likely wrong.
Before the "Source? Study?" parrots show up, you're darn right this is anecdotal. The "real data" is going to be from kids who aren't telling the truth.