lending purpose to an evolutionary trait is a mistake. It is possibly that mechanism by which they attained some degree of success, but evolution doesn't 'think' unless youre into predeterminism like that.
Do you need target practice to shoot heroin? Do you seek self medication by going out and waving a gun around?
for some reason one seems much less threatening to the general populous than the other
I used to set an alarm on my laptop to go off at the same time as my phone, so I would have to walk into the other room in order to turn it off. These days I tend to wake up several hours before my alarm goes off, unable to return to sleep.
o hello