We know that vampires feed off human blood, not just to survive (because we know they can drink other blood) but also for the thrill of the chase. They are the predators and we are the prey.
Once they've fed they have a choice. To keep drinking til the person dies or to sire that person so they too can become a vampire.
In some circumstances, we know that vampires choose to sire because they desire a mate.... in the case of Dru & Spike for example. But in many cases during both BtVS and AtS, vampires choose to sire for apparently no good reason other than to make their numbers greater.
In which case, why not sire everyone and increase the vampire population to make it harder for the slayer to control? Or is it in itself a method of population control so vampire hierarchy is maintained and only the 'chosen few' get selected? And how does this selection process take place? Can a vampire tell if a particular human is smart or strong, to fill a requirement in their ranks?
Most of the sired vampires we meet are just lackeys to the bigger bad vampires - is it therefore just a case of siring new vamps as collateral damage?
Once they've fed they have a choice. To keep drinking til the person dies or to sire that person so they too can become a vampire.
In some circumstances, we know that vampires choose to sire because they desire a mate.... in the case of Dru & Spike for example. But in many cases during both BtVS and AtS, vampires choose to sire for apparently no good reason other than to make their numbers greater.
In which case, why not sire everyone and increase the vampire population to make it harder for the slayer to control? Or is it in itself a method of population control so vampire hierarchy is maintained and only the 'chosen few' get selected? And how does this selection process take place? Can a vampire tell if a particular human is smart or strong, to fill a requirement in their ranks?
Most of the sired vampires we meet are just lackeys to the bigger bad vampires - is it therefore just a case of siring new vamps as collateral damage?