Out of curiosity, why can only humans and Rappaccinians take Loving family?
I understand why Strain 117, Bound, Changelings, Fetch, etc can't, but what about Psychics and Cyborgs? Sure, most Cyborgs are strangely enhanced, but loved ones might not notice third generation cyborgs have anything extremely off about them. Psychics might tend to be loners, but they could have close connections to family. (Arguably they might only have close connections to family, who might be the only ones who could know their secret and still accept them, or whose presences might be the only ones who don't grate on them.)
I'm just curious about the whole thing, and was thinking about it this morning.