I work in law-enforcement, and it’s imperative that I have contact with my supervisors and fellow colleagues when need be, and there always are pertinent emails being sent to me regularly that may require an immediate response from me, so I have to have my phone with me almost all the time for Those reasons alone. So no, I would not be able to take care of my responsibility/duties without having access to my smart phone.
How would I cope you ask if I didn’t have access to my smart phone? That means I would have to have a computer with me at minimum to access certain information that way.