I agree with Riverkilt. I think earlier years are spent trying to conform, fit in and somewhere find that cutting edge ahead of the rest that means you have that bit more to offer. The nearer side to 40 you realise there are a whole lot more of really important things to think about rather than waste time thinking about what the rest of the crowd think. (I feel I am now qualified following one hell of a birthday this weekend, still soaked and enjoying kilting!)
Phil