Could you go without your phone? Justin Bieber says he doesn't have a phone just a tablet, and he wakes up in the morning and uses the tablet to communicate wit

Could you go without your phone? Justin Bieber says he doesn't have a phone just a tablet, and he wakes up in the morning and uses the tablet to communicate with his management. Could you do that? I couldn't. I need my phone because work, and everyone else needs to get a hold of me. If I were wealthy, then I might have a team of people to do this for me. Therefore, I wouldn't need to carry a phone with me everywhere.