You need to read my post before responding. I stated, several times, that there is an obvious, inarguable benefit to mandatory spectacle Rx's so I'm not sure where you got the idea that I was saying otherwise. Judicious, specific use of the quote feature is always helpful to avoid confusion on this site. Please don't skim my posts, get all excited, and start typing. Below is the very first statement from the post you are referring to.
As far as the children exclusion, I mentioned that because every student would be on here in 5 seconds, screaming about the 4 year-old anisometropic hyperope or strab. I also mentioned it because there are states that require a mandatory eye exam before starting school.....for public health reasons. And thirdly, I mentioned it because it makes sense. If an adult wants to disregard his or her health, that's fine in my book, whether it's my grandmother or my 300 lb neighbor, but kids are a different story. We live in a free society, which comes with risks and benefits. So, perhaps that clarifies some confusion.
By your line of thought, the US government should require an annual physical for every American over 50, but we don't do that, do we? We should require prostate exams for all adult men over 50, but we don't do that either. By your line of thinking, physicians "know better," so we should just require every citizen to have a physical with the thumb plug, right? What's the difference? Why don't we do that? I'm sure the MDs would love it.
Just because something has a societal benefit, doesn't make it right.