Did any of the narcs you knew display really childlike behavior?

Mine was a middle aged woman, but she often acted like a 5-year-old. She would stick out her lip and pout if she didn't get her way, cross her arms and glare at you, grab people by the arm and wrist and yank them around if they weren't listening to her, burst into tears and say that you are being "mean" to her if you try to discuss something she did to you, etc. She was also really into child-like things, including Disney movies and characters, as well as dressing up in colorful dresses to take pictures "having tea."

She was also really obsessed with the past (specifically high school) and would constantly talk about things that happened 20 years ago. She tries to maintain her connections with anyone from that time period that will communicate with her, and cyber stalks people who won't. She also still dresses exactly like she did during this time period and has kept a bunch of hoarded momentos of that time.

She is a middle-aged woman, it was so bizarre. Were the narcs you knew also oddly immature and childlike? Is this mostly female narcs, or are the males like that too?