Much of the distinctive beauty of traditional building in sunny areas comes from the roofs.
Solar tiling, which is still not a mature technology, doesn't add danger: we have to put something on a roof, and if installing solar tile takes extra time, it isn't by much. And it looks good.
Less efficient and more expensive? Sure. But as the meme would have it, it's free real estate. And since we're living through a grotesque failure of robustness on a civilizational scale, let me point out that it's more robust as well, particularly combined with on-site batteries.
people used to say wind turbines are unattractive. Culture determines what's attractive, and it can be made to look nice.
Just isn't going to compete with stuff like this.
Currently instillation is the primary, but not only risk. You also get electrical accidents and in rare cases fires. Plus an increased tendency for people to go onto a roof to check them out and or clean them etc. And some extra roof maintenance due to leaks from improper installation etc.
Personally, I don’t think it’s a major deal at the individual level. However, I thik it should be considered in terms of public policy.
As to dust, economies of scale make a huge difference. It’s rarely worth it, but using a farm truck to spray water across miles of panels is much more efficient than tens of thousands of homeowners doing the same.