I have a plan but don't know if it's profitable

Become a bus/van drivers for school kids/students
- Get a PSV license -> which is a must
- Apply for class E license -> if you plan to drive a big school bus, else it's just PSV license with D license for regular school van (if I'm not wrong)

since you will have plenty of time when you are old so might as well train yourself to drive a van/bus, just make sure you fetch the kids and drop them off to school on time every morning + afternoon +/- evening

the charge per student have to be aware how much the competitors/friends charge around the area also

I saw one documentary from the TV3 999, I forgot how much the driver charges but mentioned still not enough to cover the costs, and also ignoring safety of the children by shoving in more than you should inside a school van + letting some sitting on the floor instead of a proper seat + no safety belt.