Driving cars with poor gas mileage, or more to the topic, with glass that's not the most efficient for air conditioning, is a societal problem?
Yikes, that's a scary precedent.
What else do you think is a serious societal problem?
Where do you stop meddling in my choices as to the products I buy? I can't buy it because you don't "approve"? Can I buy a pickup truck, or do I need to "prove" I am a farmer?
Or will you make me take transit?
The market will stop making things that people don't buy. The only cars I recall seeing with glass like that were the old lincolns with the orange windows that the old people drove.
As far as your nanny state retort: There are people who believe that people ought to be left to their own choices in life, good or bad. And there are people who believe that their choices must be made for them, because they know better than the person they're deciding for. You have made an argument for the latter.
Problems start when people who are under your control rightfully abrogate their responsibilities to you too - you see, when you can't decide, you shouldn't hold them responsible. So they sit on their butts, whine about benefits, and make babies in the meantime. Because they whine about not being responsible, they're making everyone else feel bad, so you repress them - speak your mind, fewer, or no benefits. Your money runs low anyways with that much drag on the system, so all you can make are Trabant cars with cardboard hoods. Until the money runs out. Now what?