A Sunday drive gone wrong. Three seniors got onto a road not normally maintained in winter, and got stuck.
I can't believe we have seniors who think a drive down an unmaintained snowy road in the middle of nowhere is "a Sunday drive". I wonder if senility figured into the picture?
It's possible they didn't realize the road wasn't maintained in winter. The Kim family didn't. Situations like this one happen to people in all ages and stages of life. Don't be fooled into thinking "That would never happen to me because I'm not old like them." (Not saying that's what you're doing, haertig, just pointing it out for other's sake.)
That said, senility could have been a factor. A good reminder to keep an eye on older loved ones.