Keilwerth saxes (S/A/T), Selmer clarinets (S/B), Altus Azumi flute
That's one hell of an assumption, and I don't understand what one should conclude from that anyway. Most of us started playing saxophone at a fairly young age. I listened to jazz before I played saxophone, mostly because my parents (who were not musicians) did, but I don't know how much real appreciation I had for any music then (i.e., as an 11-year-old).Before you started playing sax did you listen to Jazz? I suspect that if most of you are honest you'd recognize that you didn't. The appreciation came through being taught/exposed.
Appreciation of almost anything (beyond basics like water, shelter, sex) is acquired via learning and exposure. It's certainly true for any art form. There's nothing about your statement above that's specific to Jazz.