I run a 1993 JD F932 with a 72" deck, does my 2 acres with many trees in about an hour and maybe a gallon and a half of gas if I let it get big.
Depending on the summer here in WI I might cut grass 8-12 times.
S0 I use at most 15 gallons of gas a year.
My mower will last me the rest of my life and would probably serve my son the rest of his for the hours on it.
So how exactly am I saving the earth by spending 30G on a battery? How many years of mowing will I do with my JD before the "carbon footprint" of the manufacture of that battery brick will come out even?
It's about control, not the planet. They can flip the switch to "off" if your whole life is plugged in.
Basically nowhere, nothing, ever, is it more beneficial to build an entire new thing then to repair an existing thing when discussing resources. The only reason to replace is sheer performance, and then only out of an actual need. Nothing about electric stuff has surpassed existing tech, not yet anyway, in enough categories to matter. Different, better in some ways for certain tings, but not wholesale better in every way.
This is why they legislate it into existence. They have to force us to adopt it because there is no reason to by performance or economics. Because they NEED it to gain control.