I didn't own a cell phone for a long time. I was late in the game on that.
If I was a parent or a kid, I would need a cell phone, and those things are invaluable, but my kids are out of the house now, and I am thrilled when I wake up to not have a cell phone, and feel like today is stretching out in front of me for 1,000 hours, as it seems.
The idea of prosthetics is a tool. Most people's cell phones are prosthetics. If you leave your cell phone at home, you feel impacted by not having it. It's an important part of your daily function and what you can do in a day.