Lots of climbers have families and own businesses. You don't have to be a Beckey or pro climber. Leaving direct contact with the outside world behind has always been accepted as part of the routine.
Leave a trip schedule with your family. In an ideal world leave your cell phone in your car, but there are lots of emergency signalling options.
In the old days communication meant return to the car, drive to the nearest pay phone, and hope you have enough quarters for a long distance call.
Then again maybe I should get with the modern age, "Resistance is futile, you will be assimilated."