Is mobile repair a good career?

I've been considering a tech career, and after some research, I think mobile repair has real potential. The demand for skilled technicians is growing fast. I recently found Mob Edu Institute’s Mobile Repairing Course, and it looks pretty solid—they cover both hardware and software in detail. Plus, you can start freelancing or even open your own shop. Anyone here completed the course? Would love to hear your experience before I enroll!