Good on you, I've often thought that it only takes a certain critical mass to get it going.
Bit like helmets on push bikes, ears ago, none, now, just about everyone.
I've seen the aftermath of two helicrashes, both of which included head injuries (minor and everybody walked away both times), but you have to think that there would have probably been zero injuries in both those cases.
Not the subject of your question I know, but one other problem though is AOC work, the bride and groom probably aren't going to want to wear lids and ruin their nice new hair-does, and how many lids does the operator have to carry to fit all sizes? (And I'm not sure I'd want to wear somebody elses sweaty lid either!)
And I'm sorry to say that I don't wear a lid or nomex when flying, but I wear both in my racecar... go figure....