The very first teacher I had focused on technique and ear training of course, so it was not jazz at first, at all ! then the second one, a female in the A list of french pros in Paris (she's done tons of TV gigs, jazz clubs, tours and so on at that time, teacher for the Didier Lockwood's jazz school in Paris too, CMDL) focused on technique too before starting anything really jazz: get all the fretboard known straight, triads, and then get all a cadence straight in only a 5 frets box so you don't have to move that much, it was the preparatory learnings for walkings for be-bop/fast bop tunes. Luckily for me I was an avid blues player, many blues gigs since less than 10 years of playing, so I had some fundamentals.Freud notwithstanding, jazz comes in many more colors than just Trad. And, as you've seen, it can be the gateway to lots of other learning and skill-building.
Some put blues in the same drawer as jazz... but to me playing some trad blues, more rock blues and even fusion blues ala Robbern Ford and the Blue Line taught me a lot before going straight into jazz. My Roscoe Beck VHS is dead now hahaha