Because they can’t figure out where to put the batteries?
There’s lots of stuff – harmonicas being one – that I remember being readily available in my childhood years but not always so available now.
Nowadays I think you have to go to a music store – and a good sized one at that – to find 'em.
Like many noisy things, a kid that gets one is bound to have it taken away from him, too. I always figured schoolteachers must have been the best harpoon players going because they always had so many.
And while it’s a simple instrument it does take a bit of practice to get the hang of it, I do suspect kids don’t have the patience if there’s no instant gratification in it. Unless you’re unusually gifted you won’t be sounding like Little Walter (or Elwood Blues to most of the rest of you) right off the bat.
Just my WAG here. I could be wrong.
your humble TubaDiva
My life ain’t nothing but the blues.