I'm in California and the ban is only on sales, not use. There has been no difference in practice, yet. And my city also has a citywide ban on use, but there's no enforcement, so it's pretty much a joke all around.
Use will take care of itself if you ban the sale, which is what happened.
Why the pessimistic take? Don’t you want to live in a quieter environment? Transitions take time — but we are well on our way. Most places can only dream about not having a gas powered leaf blower going on and on for hours while they try to work: here it’s already transitioning. So why be anything but positive about it?