Convenience may actually hurt us

We live in an age of unparalleled convenience.

With a tap on a cell phone screen, we can summon a driver, order carryout delivery or have our groceries shipped right to our front doors. Don’t want to go through Amazon? Grocery stores allow people to shop on your phone, with the items bagged and ready for pickup within a few hours. We’re living in an age “The Jetsons” couldn’t imagine -- though I still want the flying cars.

However, what does this convenience cost us? I started asking myself this after using the Door Dash app to order some Chinese food on a busy night. The food came, the delive...