Stanley is a 29-year-old man who sleeps in a crib, sucks on a pacifier, drinks from a bottle, wears diapers, and eats in a high chair. He chooses to live his life as an "adult baby" with the help of his friend and roommate Sandra, who essentially role plays as his mother. The pair were featured on last night's episode of National Geographic's Taboo, which focused on "fantasy lives." Stanley says that his infantilism is not based out of any sexual desire, but rather of one to be nurtured. He explains "adult baby" role playing as a way of blowing off steam from a stressful day of work. Except that he doesn't have a job. Neither does Sandra. They both receive Social Security disability benefits for unspecified reasons and use their free time to run an adult baby internet support group and building custom-made baby furniture that can support Stanley's weight.
I happen to know that one of my brothers is into this kink because he didn't clear his internet history and a very telling website was in the drop down menu. This is exceptionally weird knowledge to have about one's brother.
I'm into/have done a number of things that would make pearl clutchers gasp, so I will begrudgingly shrug and say live and let live.