I was just discussing this at work this week.
Co-worker: Oh you're one of THOSE people. So are just kind into it or do love it? One of my friends plays.
Me: I love it. My pixilated wonders are the best things ever. I get to create worlds, lives, and little people and live out their stories. Sometimes I completely mess up their lives so they have to take a new path in life and sometimes they have a traditional families. Right now I have a legacy where all the men are having the babies and raising them.
Co-worker: That's not traditional.
Me: Don't judge. It's perfectly normal in my Sims little world.
I simply play because I can. It's fun for me. I play to create. I play to tell stories. I play to decorate. I play to build. I play to escape. I play for the community.