It's interesting the way they share things that normal people wouldn't want strangers, or even people they actually know, to know about, with no apparent care or concern.
Anyone who wanted to could easily find out the layout of their home and garden, and when they are home or away, when the kids are alone in the property, plus pretty much all the expensive possessions in the place. They could find out the kids schools and places of employment, where they hang out, when they are at theme parks and holiday places.
It would be too easy to snatch one of their children or to burgle their home.
Worrying.
little bags of mystery