There is a second reason for airsoft
Collecting for display..
We all like to show our stuff off, but if heaven forbid something happens our expensive toys are stolen, we are out major bucks and a real gun with our name attached to it is on the street.
If you have realistic airsoft stuff on your wall, it looks good, you can shoot it in your back yard or basement.
And if it is stolen, you are out only a few bucks, not tens of thousands for a real Thompson, and p08 Luger, and broom handle Mauser, and m16 with m203 grenade launcher.