For a while a neighbour absolutely refused to put any natural gas appliances in his house, precisely because of this sort of thing. I guess he finally got sick of paying through the nose for electricity, and added a gas furnace, and most recently got rid of his electric water heater and put in a gas tankless water heater.
I'm just the opposite. We have multiple gas fireplaces, two gas furnaces, two gas stoves, and a gas powered 200000 tankless water heater.
BTW, when we were doing my basement reno, my contractor's wife mentioned she smelled gas. I never smelled it and she said it was just for a split second. Then she smelled it again another day, yet I never smelled it ever. I got the gas guys in, and they couldn't find it for a while, but finally found it it was on the outside of the house. There was a small hole in the foundation that had been exposed when the drywall came down for the reno, and very occasionally there would be a waft of gas getting into the house, and then it would suddenly disappear. It turns out the outside piping (which was decades old) before the meter had a very small leak and likely had been for years sending very small amounts of gas into the outside air.
And then when I got my new furnace in, I rarely smelled a split second of gas when the furnace came on, and then it would disappear. In this case the installer had forgotten to cap off one of the exhaust pipe joints. Nice.