That's a good reason for not carrying a phone, but getting a cheap SIM-connected device and leaving it at home next to their computer shouldn't reveal any more information than they already are by using their home internet and VOIP.
Sure but at that point I might as well just use the computer. Cell towers do not offer me much value I cannot obtain via wifi.
Sure but at that point I might as well just use the computer. Cell towers do not offer me much value I cannot obtain via wifi.