I like being right in the middle age-wise where I work. There are just as many people older than me as there are younger than me and a fair amount within a few years of my age.
I remember being one of the youngest ones at work and looking back, I must have looked really young and naive to my older co-workers. In the last few years I've finally started to feel like I'm respected more because of my age (and the fact that I've been working here for 15 1/2 yrs). Yes, I should have been respected prior to that because of my knowledge of the business, but I worked with a lot of older men and it's hard to gain respect with them. Most of them have retired now, so it's a lot better.