Although I've taken photos for years.. decades.. I've never felt comfortable or qualified to shoot portraits. But with the help of some other local photographers, I've found that I enjoy it a lot and can actually do a decent job at it. At the risk of using an overused word yet again, it has become a passion and now I'm a little spoiled. Going back to shooting inanimate objects, I find they don't hold the challenge of catching the emotion and beauty that people have.
When I first started studying portrait photography, I watched one well-known photographer who kept talking about how a photography session, for her, was about making people feel special and good about themselves. I internalized that idea and it became a huge part of my purpose when I shoot.