Studfinder, "I hope I die before I get old" is in My Generation--which would be an excellent choice for such a playlist. (and the song you mean is called Baba O'Riley).
Some other good ones-
The Real Me-also by The Who (and featuring one of the best basslines of all time
The Ascent of Stan-Ben Folds 5 (About "changing sides" without realizing as one gets old)
Army-Ben Folds Five
Almost Cut My Hair-CSNY
Career Opportunities- The Clash
I'll never give it up-Richard Thompson
Honor Thy Father-Dream Theater (GREAT prog-metal stuff)
Anything from the soundtrack to Hair
and of course, The Times They are A'Changin bu Bob Dylan: "Come mothers and fathers throughout the land/and don't criticize what you can't understand/your sons and your daughters are beyond your command/your old road is rapidly agin'/ please get out of the new one if you can't lend your hand/for the times, they are a'changin"