When I was looking for an apartment in SF, it seemed like half the places we viewed smelled a bit like gas in the kitchen. And then the apartment we ended up renting turned out to have leaking gas pipes basically throughout the entire plumbing run. (Fortunately, the landlord was able to coordinate a brand new gas line installation in a matter of days.)

I think a lot of people live with gas leaks without even knowing, especially in older buildings. This is a good change from a public health and safety perspective.

And that's why dozens of homes go boom every year. My dumbass aunt nearly blew up her 100+ year old house because of 60+ year old under-maintained gas lines that caused a minor fire.