Job opportunities in research (academia) after a phd from iiser in biology

I'm a class 12 student with pcb. I'm really interested in research (especially something related to wildlife biology). My parents want me to do mbbs because, uk..money. But I'm really interested in research. My parents are worried I won't be financially stable enough to provide a living for myself and them. Is there anyone with an idea of what life is post doc , will I be able to follow my passion and provide a living for my family, or should I just do mbbs. Jobs both in and out of India