My monthly natural gas bill is under $20. The usage is basically nothing.
Jason Fenske (of Engineering Explained) did a video where he explained that the cost of carbon neutral synthetic fuels for ICE vehicles was around $38/gallon. This is roughly 10x what it would cost today.
Your $20 natural gas bill could easily become $200 if you insist on clinging to chemical fuels past the time that taking carbon out of the ground to use for fuel is banned. I expect fuels like this to be used in industries where the energy density actually matters (industries like aviation for example, where it takes fuel to lift fuel). But natural gas is basically the antithesis of energy density because it's mostly methane, which is way less dense than most (liquid or solid) chemical fuels.
Energy density - Wikipedia Most of the commonly used chemical fuels based on hydrocarbon chains have energy densities between 30-40 MJ/L and 35-45 MJ/kg. And while natural gas has an even higher energy stored per unit mass of > 50 MJ/kg, it is so sparse (it is a gas after all) and takes up so much space that it has a horrible density per unit volume of < 0.05 MJ/L, making it impractical to put on an aircraft.
And when heating water or air in a home:
1. You don't really care about the energy density of the fuel, not per unit mass or per unit volume, because the fuel isn't being stored in a moving vehicle and fuel isn't being used to transport the fuel
2. Cost of the fuel itself becomes a big issue and this will rise dramatically after taking it out of the ground gets banned
I've already got two Teslas parked in my garage. You can't say I'm not doing my part. But natural gas isn't going away any time soon and given the absolutely tiny amount of it I use to cook dinner on my stove means it makes zero sense to force me and who knows how many thousands (millions?) of others to spend a ton of money to overhaul our homes for the sole purpose of eliminating its usage.
In case everyone missed this the last time I posted it...
I have seen exactly zero proposals to ban natural gas for cooking. Cooking also doesn't use very much energy compared to something like heating water or heating the air. I haven't seen any proposals to ban propane/natural gas barbecues or charcoal barbecues either, because that cannot be duplicated with electricity, just like there are certain things you can do on a gas stove that cannot be duplicated with electricity. But as far as heating water or heating your home is concerned, the experience is the same no matter what's fueling the heater. But honestly, even if natural gas goes all synthetic, cooking with it isn't going to break the bank. The big energy users are the water heater and HVAC system so as long as you convert those, you won't run into big issues with cost. If they decide to no longer maintain a distribution system due to low usage you might have to convert to propane and put a tank outside though...