Wireharp, I listened to your songs, but I didn't hear any wire harp.
Do you actually play?

I hang out with harpers. To have a healthy harp tradition, a society needs:

harp makers
harp teachers
harp players

The harp players need to buy the harp, pay the teacher, and buy the strings. They also need a way to move it, which may involve a good dolley. It certainly involved a vehicle, whether a horse & cart or the right-size automobile.

The money for all these things was far from abundant in Ireland in recent centuries.

In addition, there was not the interest. I was in Ireland a few years ago, and I asked a barmaid about harp music. She said, "We have harps on our ub signs, but nobody actually plays one."

As folkies, we know she was wrong, but from her perspective, nobody plays.