Earlier quoted context omitted.
We could also make it illegal to advertise to children at all. Wouldn't that be funny if all of us started clicking "I am below 18" :D
Dream bigger? We could make it illegal to advertise period.
For example, in Washington State there isn't a blanket prohibition on signs advertising to people on the highway, but anything advertised must be available for purchase on the property. So far, that's been enough to curb companies from lining the highways with walls of giant billboards.
So--just spitballing here--imagine if people had a legal right to use and sell software that blocks ads or objectionable material from their view or on devices they own, and how that could lead to ad-ecosystem changes.