> In my household no one has cell phones

Hardly. I run a b2b tech company in silicon valley, frequently travel the world, and have a fairly active social life.

No essential services ever -require- a phone. Just say it is against your unspecified religion and watch them fall over backwards to create alternatives for you.

It is always hilarious to watch someone at a theme park or restaurant produce a paper map or menu just after saying they no longer exist moments earlier.

If I travel overnight my only tech is a tiny laptop to work on the go, but when it is closed it is off, and not able to notify me.