The big one is that all of my kids now have cellphones; the oldest an iPhone. As with all teenaged girls she'd rather have her leg cut off than be without her phone, so I can use Find My Friends to see where she is at any time. My younger ones don't have as much autonomy and are easier to track without technology. All three are to answer our calls and texts and are to keep us informed as to their whereabouts.

We regularly brief the children on emergency procedures. "Tabletop" exercises where I run them through the decisions they should make in different situations are also held regularly. Actual drills are very limited.

I raised my brother in a time before ubiquitous mobile phones. I did not brook any failures of the safety rules I set. If he went somewhere without my knowledge, appropriate consequences were sure and certain.