You must not gig with too many professional singer songwriters...
I'm doing that tonight, and I dunno if I've met more that a couple who know what sus chord does. And I'm talking about folks who make their living from music.
Which is why ability is judged before knowledge. If you play in the New York Philharmonic I couldn't give a damn if you even know what the definition of a chord is.
Also if you're a professional, by definition, you're not a hobbyist.
I'm doing that tonight, and I dunno if I've met more that a couple who know what sus chord does. And I'm talking about folks who make their living from music.