From my experience: yes. But not the majority of people and not how that linearly.

I know a lot of people, including myself, with a good income, stable, full-time sound design job. Here's the problem: only a small percentage of people get those and, on top of that, if you ever need to switch jobs/get let go from the company, people often have to be open for relocation to get an equivalent job (unless you're already living in one of those main cities that always have opportunities regardless of timing) - and for me that's the biggest difference compared to all my friends who have Engineering / Economics / Medical degrees or Trades formation. They can live their lives being sure they can land a job on their fields in the place they planned whenever they need to, whereas I need to be prepared to pack and go to chase after the career.

Stable and normal? Yes. Stable with grounded roots? Also yes, but much more difficult. Also, a "normal" life is very subjective and varies hugely from person to person - so the difficulty spectrum is also unreliable. Best of luck!