Answer:
The statement that is NOT true about the legend of Laozi's birth is: "He was born as a full-grown man with a grey beard."
Step-by-step explanation:
This is a common misconception about Laozi's birth that is not supported by the legend. According to the legend, Laozi was born as a normal infant, and it was only later in life that he became a wise and revered sage. The other three statements are true about the legend of Laozi's birth.