Is the wave dying, or do I just live around a bunch of lame-o people?

Got a Gladiator on Monday; first Jeep in about 15 years. So far I've driven past ~40 Gladiators and Wranglers, and like maybe 7 have waved back... and I think one of those was the same dude on different days.

Mostly seems to be older people, like 30s and up that aren't doing it (I'm 40 myself). I'm still gonna wave regardless, but it does make me give out a tiny "shucks" when they ignore me lol.