/jp/ - Otaku Culture

So question to ya'll who have dolls, why do you anthropomorphize them?
It's something i've noticed on the doll forum as well, though to a much more extreme degree, giving them personality's and storys to a point that can feel more than just roleplay.
I've been interested in owning a doll for a good couple of reasons but this has stumped me for awhile why people act like this so I was wondering alongside the why if it's something that grew overtime with you owning the doll or if it was something that was instantaneous or preplanned I suppose.