What kind of research is she doing, that's giving her, erm, 'vibes', resounding at that, instead of actual, useful information?
For a start, tech and finance are not careers. They are two very broad fields, with a multitude of different jobs and career paths. Requiring many different skills and personalities.
I have worked in both - I was an accountant, banker, and then software engineer. I'm very confident in having a job even with AI, because, contrary to popular perception, I don't just sit and write code all day.
There are many other jobs the general public don't know about like logistics and supply chain management, sustainability, environmental engineering, risk management and analysis, forestry, hundreds and hundreds. What you have posted are 'popular' careers, I guess many consider them because people know they exist and hence they seem accessible but there's so much more than that.
There are some good career quizzes about but also, she should focus on skills, her likes, dislikes and go from there. Also she's only 16 she doesn't need to have her whole life mapped out, unless she finds something she's fiercely passionate about.