I wonder what the percentage change in prescription glasses has been over the last few decades and, how much earlier people are getting glasses now.
Such things could be prevented by education or public service ad.
Isn't this government intervention?
I meant to say self education, and public service ad is not a compulsory, no intervention-no force. E.g. cigarette.
I understand. I just wonder where the line gets drawn for example, in school education. At the moment around the world, most education systems have a lot to be desired in this area, as governments push their own ideas onto everyone equally. In some cases it is beneficial, some not.
I think it is in generally for history and social studies.