I lived without a phone number for about 9 months a few years ago. My phone was basically a WiFi device. I really enjoyed this time and am considering doing it again. I only stopped because my brother got annoyed and bought me a new SIM, but nowadays he doesn’t call me much and uses internet for voice. Even my mother uses WhatsApp for voice.

Having a WiFi-only device (as opposed to a data-only one) did mean I had to plan things a bit, just like I had to do before mobile phones became such a popular thing. It wasn’t a big deal at all.