Does anyone have any experience in Infantilism or in lay terms "Adult Baby," or has known someone who was into this?

Here's an explanation:

I feel like a lot of people who were abused as infants or toddlers experience this in some form, but I have no citation to back it up. Just wondering if someone had the same experience? I believe there's a correlation between abuse at such young ages and Infantilism in adults, but I don't know for sure...

Life's disappointments are harder to take when you don't know any swear words. -- Calvin (Calvin and Hobbes)