That's why so many professionals are so adamant about sharing their theories on nutrition.
It's just the unfortunate reality that there are also countless special interest groups with particular motives when it comes to spreading disinformation.
(I do share links to studies I find interesting, but I don't really believe I can evaluate them and know which ones will hold up.)
I do think it takes a certain level of expertise to start making claims about things like Keto without just repeating something you heard elsewhere, but a diet with lots of vegetables is undeniably healthy.
Don't be afraid to share the knowledge you feel confident in. Just hold back on the stuff in which you aren't confident. :)
If you're feeling confident about something without having done your due diligence, that's a separate issue.
Adults are just children who grew up. There's still no reason to believe they will just "learn" on their own.
Instead of favorably comparing yourself, with your bag of organic vegetables (my imagination is running wild picturing what that must look like) and your superior intelligence which led to self-learning how to escape sugar and fat, to the rest of the American populace who clearly need to learn, devote some of your time and expertise to actually making an attempt to educate and help those who don't know better or who are trapped in addiction.