Could I live without it?

Sure. I love books and have a few on my shelves I still need to read. Plus, I get a few magazines sent to me each month. I've been trying to get back into shape like I used to be so I'd have no problem spending more time outside exercising and such.

Do I want to?

Nope. Not even close.

tnec outlined a few reasons. They offer me tons of entertainment. And I program so they're a valuable tool for me.

But most important to me is the access to information they provide. I have been able to learn so much with access to computers and smartphones. Information that school didn't teach me about. Information that has helped me grow as a person and simply solve problems that have come up. I've been exposed to philosophies and politics that would have been hidden from me if I had to rely on mainstream society and media for information. I've had access to programming/computing knowledge that has helped me hone my skills.

And I don't know what I'd do without my smartphone. It's practically my Bullshit-Checking Machine. And being able to keep up to date with news or email is too important to my productivity.

I understand and respect why some would choose to unplug. But I don't think it's for me right now.