I'm not saying mandatory, I am saying put all the money wasted on solar roadways into improving the technology in general, or even just buying people solar panels. So far, this is just a massive cash burning spree that has a near infinite number of better uses.
You shouldn't forget that the major investors in solar roadways are private companies and not governments. Several people seem to have done the math and deemed it worthwhile to invest in.
I don't think it matters if it's the government or corporations who threw money at it. Private companies and investment firms threw well over 120,000,000 United States Dollars at a company selling 400 dollar DRM juicers, by a man who went on to claim that untreated water was actually good for you.
I can rant all my want. I think my opinion is valid, but opinions are but birdshot to the hull of industrial stupidity. Renewable energy is a promising future with major strides already made into it. Blowing money onto a technology that doesn't have the unobtanium to do anything near worthwhile is stupid.
Now, my question is, why not use solar sidewalks instead? You don't need to use as strong of a material to top it, the lights could be used to replace street lighting (and maybe even be motion or pressure detected to avoid light pollution), you will get more energy because there aren't massive cars covering it, and we have plows that clear away our streets, but as a person who has to scale snow mountains during the winter, heated sidewalks isn't a terrible idea.