Really? It all depends where your anxiety lies and thank goodness for home insurance. If something is not covered by home insurance - then you definitely should not be doing it.
I absolutely put the washing/drying on, go out, go to bed.
I keep the oven on when cooking, even if I need to go collect children.
I don't unplug every plug in my home before going out/ going to bed.
But we all place different risks on different activities:
I probably wouldn't have an electric bike or car plugged in anywhere close.
Also:
We have a carbon monoxide monitor in our home.
Our smoke alarms are hard wired into our mains
We've always had an emergency evacuation plan in the event of a fire. (Well the eldest since age 6. Then she was proud to tell the next two.)
The children know to go with a current if you get sucked by a rip tide. (personal experience.)
But we pretty much all have a risk coping strategy depending on how/when we've been threatened or perceived a risk that resonates with us.