Gas powered lawn-mowers are annoyingly loud, I wouldn't mind seeing them banned.
I have a Worx robotic mower, I used to have a Robomow back in the UK. They are THE best thing you can ever buy ... because you never have to mow your lawn again and it's absolutely silent. You could run it at night.
What this will impact is lawn-care companies, because batteries aren't good for storing as much energy as gasoline is. Imagine the number of batteries they would need to do a days work?
And of course, the batteries and power still need to be produced. It's just outsourcing the pollution.