Tumblr - They've figured it out

Yeah.

It says that those people should stop spouting bullsh!t.

Okay, I might raise some controversy by asking this, but now that I've google-searched the term "otherkin" and found out something about what it means, I have a question:
If we ignore the physical age, how is "otherkin" any different from a "child unable to differentiate fantasy from reality"?