While there are many economic and social factors to encourage this trend, the ethical issues pertaining to the use of robots as caregivers requires careful consideration.
Scott Adsit (of 30 Rock) voices the robot Baymax as a gentle nanny turned inflatable transformer, like a giant plush doll with the instinct of a caregiver and the mind of an overprotective child, a little slow on the uptake but utterly benevolent.