LOL....really no question is too silly or dumb.....LOL
But yes it is mostly for the ladies that ride on the wing to be able to "freshen up" after getting off the wing. My wife has short hair and she just runs her hand through it and away we go....LOL. Mine did not want a mirror in the trunk but did want a light to be able to see in the dark when opening the trunk.
When we go on a bike trip .. I handle it kind of like when we go camping (with wife, 1 teen 1 preteen girls).
I tell them lay out all they want to bring along.
Then I do the denials.
Does each have to bring a hair dryer, curling iron, straightening iron (why would you need one if your bringing a curling iron ? ), one gallon of shampoo and conditioner each, makeup .. makup .. who the heck wears makeup on a camping trip ??? .. this is just the tip of the iceberg !
... Im sure you see what I mean. ...wouldnt give 'em up for the world though.
LOL..yeah that is one reason when the wife and I go on long trips I have to bring a trailer.....all my stuff is in the left saddle bag and part of the trunk All her stuff is in the right saddle bag, the trunk and the trailer.......LOL.
I had one on my 98 GL1500 that my daughter used to correct "helmet hair". It also had a light which proved useful at night to see in the trunk. I don't have one in the 09 GL1800..... (kind of miss that light)
When you have a wife and four girls age 8 to 27 you sometimes have to forget to pack all of the bags. Trouble is then you end up at the store when you get were you are going. That little mirror is so you can see that happy face you have on you when you end your day because your great wife told you to take the bike and meet them.