It is amazing how much brighter the stars are way out in the undeveloped countryside.
I recently read a magazine article that said the new LED streetlights are going to reduce light pollution a lot. LA is going in for them in a big way.
Dark rural skies are great. Many kids living in cities have never seen the Milky Way, which is one of the spiral arms of our own galaxy. We often go to a rural site at the 7000’ elevation. It’s spectacular.
LED’s will work but must be shielded to keep the light directed towards the ground, not up.
Millions of lights around cities have created giant light domes which can be seen for hundreds of miles. Lots of light/energy wasted lighting up the atmosphere. Cheap shielding would solve much of the problems which have nearly washed out the night skies in urban areas.