I live in an apartment where the only natural gas items are my furnace and hot water heater. But even if I wanted to convert (which I can’t since I rent), it wouldn’t make one lick of difference because I live in Saskatchewan where our power grid is still 80% fossil fuel powered. So using electricity is no “greener” than using the natural gas myself. Plus using natural gas is far far cheaper than electricity (even with the price on carbon for doing so).
This issue is a lot more complex than just “more houses that are all electric with no natural gas” when you take into consideration the power grids they are attached to.