How many people choose their profession? Parents, school, friends or trends affect our decision on what to dedicate our lives to. Sometimes we have many options and can't decide. Sometimes we just don't have an idea of what we want. I was in both situations in different periods of my life.
I wasn't sure who I wanted to be and selected something on the intersection of topics that would match my mindset - economics and computer science. It ended up as something close to Data Science, which I'm currently doing. But some people weren't that lucky. They either dropped early, or didn't have an idea what to do after university, or tried to make a change a profession a few years after.
Seeing it happening to different people, I thought, should we choose only one profession and dedicate our whole life to it? You can make the wrong choice or circumstances can change and you discover something that excites you more than your current job. It's pretty hard to make an orthogonal transition. Learning a new job and getting experience in a new field can take years. If you're already established professional with a good salary, it can be morally hard to give up everything you have to pursue something new.
I wish it would be simpler. There are so many things I want to try myself in. But time is always a constraint.