My teacher does not promote scales with me.... I wonder if I should be working on scales? My kid also does Hanon; I do not.
It is up to you whether you find value in them or not.
My teacher worked with me from the outset with scales, their chord progressions, arpeggios and most recently trill exercises that use each pair of fingers (1-2, 2-3, 3-4, 4-5) and octave scales. I have found that my fluidity in playing scale passages and octave passages when they occur in the music is second nature now. They just happen with no effort. I also do Hanon. I have found that they help with my finger and hand rotation motor skills that is helping to speed things up. My left hand tends to be slower than my right and so I work on just the left hand of the exercise a few extra times before I do hands together. The left hand is becoming more conditioned and equal to my right.
I told my teacher that I wanted to be taught the technical foundation she would normally teach to her school age through high school students that took them to the advanced literature which prepared them to enter into a music program in college.
I really want to learn everything it takes to become a proficient credible pianist and not have deficiencies in technique hold me back.
These are my goals. Everyone has their own goals which are different from mine.
I know some teachers approach adults as if they are dabblers in a hobby and assume that all adults fit the same mold.
You might want to discuss with your teacher if he/she teaches the same technical skills to adults as she does her school age students but in a different way. Or whether he/she thinks adults want just enough of the basics to play at a particular level or a particular style of music. If you find you want more than what you are doing now, then you can tell your teacher what your goals are and ask what you can do to achieve your goals. I have found that the more I learn the more my goals evolve and we continue to add new skills.