I'm not an infintilist myself, but I think infintilists can be damn cute.
So long as the person in question isn't starting to ruin their own lives over it (such as never getting a job, being abandoned by parents who think they're freaks, and then just never really "growing up" enough to take care of themselves.) the act is fine.
I've had only ONE of my three therapists call me an infintilist.
Only because I had an oral fixation and took to pacifiers.
...And it may have had something to do with me using Johnson-Johnson shampoos and washes. Also baby powder.
Because to me,
Soft skin = love.