I asked my mother this very question. Her response “never”. As each of my kids have reached a milestone, driving, graduating, etc I asked my mother how she kept her sanity.

My daughter moved further north for college. They get many times the amount of snow up there than we do here. We’re close enough that I get her weather on my local news (about 3 hours away) and I call her every storm and say park the car, stay home, and call me before bed. Does she listen to me? Probably night, but once I get that call saying good night I feel better, no matter how late it is. A cell phone is a must. When she stepped on hers last week, I had to run up there with a new one, I just can't be out of touch with her for that long.

FYI I still have to call my mother when I'm travelling to tell her that I've arrived at my destination and I'm safe and sound.