*You asked why and then answered why. If you are a non person without a job, there is something really wrong. If you don't do anything that isn't work, thats pretty sad.
It's your choice and your feelings and its nothing to do with me, but I think you'll find that most people find the attitude that you are and have literally nothing outside your job is not healthy or something to be recommended.*
I have plenty of stuff outside my work, but I wouldn't find them fulfilling enough on their own if I wasn't working. Spending time with my husband, time with friends, practicing yoga, going to concerts and listening to music, reading - they're wonderful leisure pursuits, but they're hobbies : they're not substantial enough to fill my days entirely if I had unlimited time to occupy myself. OK, I'm taking time out to try and write a book so that's definitely something. But that's a specific project in its own right. If I wasn't working then I'd need to find something substantial that wasn't work to get the intellectual stimulation and social interaction and sense of accomplishment that I get from work. I'd have to get some kind of meaningful volunteering role or go back to university to get a masters or second degree, or train to be a yoga teacher or something.
When I wasn't working due to ill health I felt like a non person because I didn't have a substantial project to meaningfully apply myself and find fulfillment and reward. I wasn't well, and all I did was read and potter around the house and do some gentle exercise when my health permitted.
I'd need something that I could say to myself that I was actually doing and accomplishing something. That doesn't have to be the same job I currently do now - like I say, I'm taking some time out to write. But that's doing something - being a writer is work. I need to be able to be doing something constructive that makes a contribution somehow, which I wasn't able to do when I wasn't working due to ill health.