Many people raised questions about"How do you chose the subject of your choice?

Many people raised questions about"How do you chose the subject of your choice?
And many replied-working hours,fame, chance for further specialisation,scope etc
But how many of us chose the subject just for one simple reason-Yes we love that subject and we enjoy that.Bhar main jaye paisa,scope etc

If u have chosen a subject for money,fame,work load etc then u dont love the subject then u love the attached benefits not the subject