I play with the Northampton Music & Performing Arts Trust (a series of centres run at school premises across the county) on a saturday morning.
There are tons of guitarists but still not enough bassists. The teachers (not me, I attend to play as my kids are members) are more than happy to provide multiple bass arrangements for single pieces to make sure there is something for every ability.
Maybe bass just isn't cool enough for teenagers! There are loads of guitarists, saxophonists, drummers, pianists, brass and woodwind players, but not bassists.
Still - on the plus side, it means I get to play as much as I want!