Yeah I heard that some kid once got hit by a bicycle, that's why those have been banned for years. Oh, and right, I once bumped into someone in the street, I guess that's why they closed down the streets.

But yeah, things might possibly go wrong from time to time so best not to try. Giving up is always they best thing.

Are you OK with your kid taking a copter blade to the face for the team? Wait, I mean, for Amazon?

Are you OK with your kid taking a FedEx bumper to the face for the team?

I'm pretty sure FedEx drivers don't drive on lawns, porches, decks, pools, or walkways, but perhaps things are different where you're from.

I'm pretty sure delivery vehicles have been involved in injury accidents since the horse-drawn carriage days.

I'm pretty sure we have a century of training people/kids to stay off the roads because roads are dangerous. Flying drones /everywhere/, including your fenced in yard, makes /everywhere/ dangerous.