If we see "qualifications" as things to make your résumé
prettier, then I would say its awfully important. But that's
depending on where and what you wanna do. Obviously with
qualifications you will be attracted by many many companies. But
then there's the other stuff that's important for you to keep the
job you got.
Lets call this the "normal" path. Normal being you study till
you max your stats, then you get a kick-ass job and you study some
more from your job. Then you get promoted you get pay rise, and you
use that money for anything but your job. Until you retire.
Then there's the "Genius" path. You have a talent, you create
the next big thing and people worship you. You become a multi
billionaire at the same time you leave school and say," I'm gonna
be the next Bill Gates". You either fail or, if you actually are a
genius, enjoy being rich.
Theres the last path called "Dreams come true" path. You have a
talent, or an interest/passion, you realised the earlier you quit
school and focus on your talent the faster you'll make a living out
of it. And also so that you have more time to sponge of your
parents till you become too old and have a chat with macdonalds.
This path requires the most amount of effort and focus. But it's
the most rewarding because you actually for sure end up doing what
you want to do. But if you fail, your gonna wish you had the
qualifications to fall back on, and try again later.