I'm only 24, but I've been using and collecting knives since I was 6. My first knives were a Buck 110 and a Camillus stockman, then various SAKs. I didn't get my first tactical until several years ago. So I don't really agree with the idea that the younger generation is more drawn to the tacticals.
That said, my background is in the more traditional world of knives and that could lead to my bias towards slipjoints and the like. Tacticals do have their place though, and I carry one just about everyday because I do like to be able to open, cut and close one handed without too much effort.
I just picked up an older Boker stockman on ebay tonight... so I'm looking forward to getting it.
I think part of the reason for the tactical craze amongst a majority of the youngsters is the fact that most stores that carry knives, don't really have much in the way of your traditional folders. Gone are the days of the corner hardware store or bait and tackle shop with the Schrade display case on the counter (surprisingly enough, I'm old enough to remember those days too). Now you have the large chain stores like Home Depot, Lowe's and Dick's that mainly carry some form of one handed opening knife, with very little selection in the traditional folder category.
I remember those days too, but there are still some stores around like that. There's a little independantly owned hardware store in the town where my dad grew up that's an authorized Buck dealer, so you can get the 110s and other traditional knives OR you can get a Strider. I remember going in that store with my grandfather 20 years ago for fishing supplies... it's still there with some of the same people working there. I try to swing by everytime I'm in the area.
There's a little gas station/country store down the road from my house (I live in the middle of absolute nowhere) that has a wonderful selection of Case, Queen/Schatt & Morgan, Camillus, Buck, Bokers and other traditional slipjoints... surprisingly, no cheap Chinese crap so common in buckets at gas stations (no tacticals either).
They're still around because there are still people like us in the world who will pay a little more for something of quality. You gotta look, but they're still there.