Gas is much, much cheaper. Like, insanely cheaper. Many homes were built long before it was normal to have 200 amp service.

It’s only in relatively recent years where heat pumps are becoming more common. And resistive heat uses a lot of electricity.

Gas has had decades and decades to be made safe. We have odorants so people can smell it, meters and sensors to monitor for abnormal usage and leaks, and it needs to be contained to cause an explosion.

Leaks outside suck, but aren’t really that dangerous because they can dissipate and be blown away by wind.