Oh plz!
You ever read listservs of Russian anarchists and libertarian socialists?
Tons of teenagers and twenty-somethings active. And not in Museums of Nostalgia like the KPRF. http://www.marxist.com/russia.asp --- See, this is what annoys the living crap out of me. Giving on "oh plz!" response to something I've said based upon what I see with my own two eyes on a daily basis because of something you managed to google.
The fact of the matter is that you can get elderly people out to clog squares, whereas the only way you could get more than 10-15 Russian teenagers to a political event, unless they are members of Moving Together, is to throw a rock concert there.
Pensioners, in addition to having been the group hardest hit by "reform," are used to going to demonstrations and grew up in an atmosphere of idealism. They were Building Communism and going from one victory to the next. The generation following them came of age in a climate of cynicism. Today's teens and 20-somethings grew up in an environment of chaos. They are atomized and almost completely passive. They drink beer and party. They do not give a rat's ass about politics, which is perceived as something alien to them that the elites engage in and upon which they do not and cannot in principle have any influence.