The issue for me is, for example, my wife drops my kid off for a camp and then the camp calls me in an emergency. So I can’t just only take notifications from known callers.
The kids that didn't survive were buried and no longer interact with us.
Can You guess why? Thats right - he also had a policy to not take phone calls from unknown numbers (especially foreign). They had to go to ours country ambassy in Spain (which took a while) and beg for help.
Since that day his father answers all calls :)
Neither of these calls often. Maybe once a year you get call like that. But when they call, you really want to pick up.
Only my close family are whitelisted.
Most time people call twice during an emergency. You could also say to call back again in case of emergency in your voicemail message.