How to spy on your aging parents — ethically

My mom was excited and confused when she opened her Apple Watch at Christmas a few years ago. “What a nice gift!” A pause. “What am I supposed to do with this?” We told her the truth: A smartwatch can do all kinds of useful things. Fitness tracking became the thing my mom latched onto. She loved counting her steps and seeing how many miles she walked in a day. It motivated her to become more active, too. We didn’t tell her until much later that the Apple Watch’s fall detection feature was the…