Gonna thoroughly disagree with all airsofters knowing what deodorant is/that showering every day is a necessity.
Tbh I don't see much of a difference between a bunch of airsoft players going to The Mall back when that ran (or one of the many other currently operating sites that are in the middle of a dense urban area) vs con attendees heading to their expo centre... or me just transporting a RIF from any address to another for a reason that's within the law i.e. to one of the techs I use. Or buying a RIF from an airsoft shop and bring it home. Or buying an air rifle or crossbow or whatever else from a shop and taking it home.
If you let people see a 'gun' in public then guess what, ya dun fucked up son. If you keep it totally hidden until you are within an area where gun-shaped things are legal to display and the appearance of said items is very much expected by everyone around, then that's going to be fine.