Not use the internet including to check email or chats or messages or Google random stuff or map to anywhere on your phone?
If the people I care to talk to are in the room with me at the time, I don't need to get on my phone. That's not always the case. Sometimes I will stick my nose in my phone in a public setting, and it's not intended as a slight. I just have a fancy in my head about something I'd like to go read about.
However, this is more to my point. My separation from the internet has never needed to be some all-encompassing effort. I have never thought about needing to make sure that there is absolutely 0% access for an extended period. If I go on a multi-day backpacking/camping trip, it's not to escape the internet, it's because I like being outdoors.