Gen X and Millenials don't share Boomers' obsession with green lawns, so it's a race against time, whether Boomers or lightning bugs will go extinct first
I looked it up and a couple of states have laws against HOAs from forcing your to have a grass lawn. Alternatives can include native plants, drought tolerant plants, xeriscaping, vegetable gardens depending on state. The states I've found are California, Colorado, Florida, Texas and Maryland, Nevada.
I thought lightning bugs were mostly from light pollution and deforesting? I live in the woods not near a major city, and every summer there's thousands of them still, thankfully.
I don't think there's good data on exactly why but the experts view habitat loss, artificial lights at night, and pesticide use as the top three concerns (the North Americans surveyed put pesticides above light pollution but globally it was the opposite).