Part of "the Folk Scene" - not as much as it should be.   But of course Trad Jazz is a folk music. What else could it be?

I suspect a proper trad band is a lot more likely to be warmly received in a folk event these days than in most Jazz events.

It's a music that is overdue for a revival. The problem is it requires a lot of instrumental skill at entry level. With folk or rock you can start with a voice, and then maybe a couple of chords and work your way in. With trad jazz you've got to have a whole bag of tricks before you can even start.