Except for my adult sons who live with me, it might take me some time to miss most of the people I listed. I can sometimes go a week without talking to my best friend on the phone.
As far as my sons go I would probably wouldn't report them missing for at least three days as they sometime visit friends and decide to stay a day or two. My youngest son is usually considerate enough to phone me but the other one often forgets to. He often forgets to take his phone with him.