Yes. Unless it is different laws in other states or countries. NY you can
yes you can
Anything is possible but not likely with air soft. But they do hurt when they hit you. Simply don't shoot anyone with an air soft gun. Treat it like a real gun.
Not normally. BB are 177 cal, air soft is 6mm
No
tin can, glass, sometimes skin.
It has to be electric (AEG).
yes it is 100% safe. The carpet absorbs the bullet.
With a good airsorf gun, a shoe box.
i think so
Laws on this vary by jurisdiction.
Because it's wrong, illegal and liability reasons.
Be sure you do not disrupt the neighborhood if your gun is loud. The main worry is not to make it be mistaken for a real firearm. Aside from those points, you are set. Play safe.