DS8 is in that same arc with his own long term plan to be a math professor. If it isn't academia for him, I would guess it would be because he gets tired of schooling. If that is the case, then a strong match for those skills is IT which is a field with many entry points that don't require academic credentials.

So, I encourage him to be comfortable with programming and real world problem solving, and will continue to trust and encourage his explorations. He's also aware of accounting and finance as mathy careers.