This happens less often than being killed by lightning, which you do not take proactive measures against.
People can leave a message. Officials can leave a message. When do you ever need to answer a call from a official?
911 is for getting instant help in emergencies. No one needs you to answer your personal phone immediately.
I tend to agree. It's probably in part that I can remember when someone reaching you required you to be at home. I can even remember before answering machines :-) Now, I don't make myself arbitrarily hard to reach. But I also don't buy into the idea that it's unthinkable to not be reachable 24 hours a day.
I do take protective measures against being hit by lightning. I don't take shelter under trees during a lightning storm - I do so in a building that has a working lightning rod.
> I do so in a building that has a working lightning rod.
On a serious note, all buildings are different so you can't really do this reliably as it is unlikely you will locate the lightning rod before it is too late to course correct.
People can leave a message. Officials can leave a message. When do you ever need to answer a call from a official? 911 is for getting instant help in emergencies. No one needs you to answer your personal phone immediately.