Perhaps I was too categorical, it is an useless toy... In the context of home security, in others like eldercare or checking the state of unoccupied buildings it might be useful.

Even then I don't think it would in that case, my personal experience tells me that it could be distressing to someone who's disoriented, drones aren't exactly quiet. (Also it apparently it only moves in premade paths)

A GoPro-esque camera with streaming attached to clothing could be better at that.