Is it normal to want to be treated like a child sometimes?

I'm a fairly aloof, cerebral woman, and people often mention that I come off as dour, so it's humiliating to long for something this pathetic and maudlin behind closed doors. Hoping to receive some affection from my undemonstrative family, I always strove to be more mature and diligent than my peers as a child. It never paid off, of course. I feel as if I've never been dependent on anyone, and I crave that feeling of security and love. I fantasize about what it would be like to be coddled by someone, and to be able to just shamelessly adore her without fear of remonstrance or scorn. I can't imagine anything more serene and perfect than being someone's sweet, innocent little girl.