I was working on my college degree six years ago and would see elderly ones sit on a bench holding up a Watchtower. They said nothing and did nothing. Though I've been inactive for quite some time at that point it still didn't seem the usual hype I recall from my youth. I did street witnessing and I never would just stand in one placing holding a magazine.
Those witnesses might as well of been invisible to the young college student. I don't see what the WT has to offer young people to be interested. I think religion can have a valuable use in our society but sadly it seems just a black hole for ones money.