I'm actually in favour of renewable energy - an early adopter of Solar panels ...
However ...
I do acknowledge that we are stuck with gas for quite a while to come.
Not only because the dispatchable power needs are going to be with us for decades until battery storage comes up to standard ...
but the task of removing / converting gas powered appliances across the nation is going to take a
very long time.
I estimate it could take between 15 and 30 years to get the task done if it was made the most high priority task starting now.
Every gas heater; gas cook-top; gas hot water heater; gas oven ... from every house where they are installed.
Blimey ... it's a big job.
The NBN rollout for example took a decade and that was a much simpler task compared to getting rid of all gas powered appliances nationally.
What happens in the meantime if we turn off the gas supply?
So ... sorry to say it but we are going to need fossil fuels (gas) for quite a while yet.