I tend to agree that through our culture of "youth" aspirations, people (particularly in the US) are more "age sensitive". I don't know when that trend started, but I do encounter it with friends/relatives/co-workers. I am noticing, though, that the group that doesn't care about divulging their age is tending to grow compared to when I was younger. Growing up it was always extremely taboo, but now, with this whole push for fitness and people being active and adventurous - more people are becoming proud to state their age vs hide it. I think a lot has to do with people who surround you and how you view yourself - for me, my parents (more so my dad) didn't care if people knew his age - it was just a number (partly), but also his dad died relatively young (in his 50's), so his goal was to out live his dad...so getting older was a proud accomplishment.
I also had an opportunity to see a fantastic documentary called "Mary and Bill" - about Mary, a 92-year old triathalon participant, and Bill, an 86-year old high jumper (national champion in the senior division). Their stories were just inspiring, and Mary actually sees my chiropractor - just the other day I saw her in there, and she's now in her mid-90's and still going strong. Earlier this year, one of my grandmothers celebrated her 100th birthday, and the other one went kayaking for the first time on her 98th birthday. I'm thinking if more people had inspiration like this to look up to, growing older would feel more like an adventure to aspire to, vs something to dread and hide from.
As for me, I'm 41 and counting baby!
My plan is to outlive whichever grandmother lives the longest, and can't wait to see what the human race discovers or invents along the way!