Lawnmowers and cars are apples and oranges. If an electric car would be able to travel long distances in a day, were economical and had the infrastructure to support them, then folks may more readily consider them. Now a lawnmower, not as bad, but there are considerations still. Electric mowers are still very costly and most people aren't that keen on ditching a perfectly good mower to buy another that costs far more. And in this economy, that's a huge ask while people are struggling just to keep their head above water.
As far as gasoline is better, well, look at that car travelling from New York to Chicago. A 12:30 trip of about 800 miles is doable in a day. While you can adopt a different mindset, the reality is that an electric car makes this trip a PITA or even impossible with at least 2 stops to recharge (@ 1-10 hours based on charger type and battery condition) making this trip at best 14:30 and an overnight stay at worst. Unless somehow in the electric world the laws of physics no longer apply. Not to mention an even longer trip. I know folks that own property in NY and FL and drive to vacation in FL. The longer the trip the worse the experience. Don't forget, that the electric infrastructure simply will not support all electric vehicles. The current infrastructure is in need of upgrades and that is for everyday life currently. It can't handle plugging in every device to go electric. A mindset of gasoline is better prevents the total collapse of the electric grid and the standard of life we currently enjoy while the brighter minds overcome the range/capacity limitations and develop the infrastructure to handle those changes.