i'm a 29 year old guy who's been wearing nail polish on his feet for 5 years now (my wife usually paints them for me, she's fine with it as long as it's not pink). i got my first manicure at a spa 3 days ago and the girls there did not want to paint my toes (black this time, figured i'm in public i won't go totally overboard), but it wasn't until my wife spoke up that they agreed to do it.
most of my friends have seen it at some point, one of them even took his socks off to show me his toes (which were a bright blue) - he smiled and asked "ya like?" and seemed quite happy to be able to share this 'secret' with my wife and i.
i have had clear polish on my fingers for months at a time (removed/reapplied) and my coworkers noticed but never commented on it. many people are afraid of the societal backlash, but the fact is that it rarely occurs (most people just shrug it off if it's not their thing).
Quite honestly, after having the first time i did this i felt that i had a better understanding of why women do it. it was my wife's idea for me to learn and understand what she goes through - in addition to some mascara/lipgloss/foundation/eyeliner for a 'bigger picture', then she laughed and said 'now picture it's late at night and all you want to do is sleep, and use 'this' to get the stuff off. good luck. since then i have never questioned the time it takes my wife (or any other woman) to get ready.
sorry for a bit of a rant here, but i think that it's something more people should try (i feel pretty, oh so pretty...) and people should stop making a fuss about it.