Just for some anecdotal evidence of this:
I am 21. I never fired a gun until about a year ago. I now own four.
My girl friend now has a gun of her very own. At times she is a better shot than I am.
My best friend is buying one very soon after I took him shooting.
I was just at the range and at one point I didn't see anybody over 30. In fact I frequently see large groups of college students come together. One or two of them will have their own guns. The others are just along for the ride or rent guns.
I frequently meet people in my college classes that are into guns.
Yes, the gun culture is alive and well in the next generation. And not all college students are liberals. Incidentally, the moron I saw today who couldn't clear a jam on his own weapon and walked from the range to the gun store to ask for help while pointing it at a clerk appeared to be in his 40s.