I will chime in as I have been a huge lid proponent forever, but also spent some Harley years where not wearing one provided some advantages... assuming you don't crash. As an FYI helmets have likely saved my life a half dozen times or more probably.
A little tongue and cheek so don't jump me
Advantages of NOT wearing a helmet.
1. It slows you down.. any thing above 80 is usually avoided. Flappy cheeks, watering eyes and yes.. bug hits get painful.
2. When you get to the bar your hair looks good.
3. Seemed that chicks dug it (this was the early 90's and I was just divorced so chicks digging it was important :laughing)
4. Speaking of chicks you are much more accessible to kissing and such.
5. Easy to flirt with a girl driving a car at a stoplight.
6. Easy for a girl to decide if you have a chance of taking her home.
7. You don't have to worry about it being stolen.
OK.. all I got.
Lead by example. True leadership.
Though... Dan...here we are. As BARF's dutiful bean counter... way rocks too.