Supporters often defend the granny sex doll by citing the "technological neutrality" of the torso sex doll, but ignore that technological objects always carry the value judgments of designers. When engineers choose to set the age spot distribution algorithm as an adjustable parameter, they have essentially made the ethical choice that "aging characteristics can be entertaining". More noteworthy is that the nanosensor technology used to enhance tactile feedback was originally developed for medical rehabilitation, but is now used to simulate the elasticity changes of elderly skin. This technology migration process exposes the serious lack of innovation ethical review mechanisms.