thats great, and works out well for you, thats fine. I know I have a job, that because of the shared unique experiences of my profession means I have a lot in common with many of the people who share my profession. Also since my profession is also my hobby and my passion, along with many others who have it, it becomes interesting to know others who share the same job, share the same unique experiences, and have the same passions.

I dont know this this "defines who I am as a person" , but I know i picked this profession BECAUSE of who I am as a person, and not just randomly out of a hat, and so it does say something about who I am as a person.