It doesn't seem to say 11 specifically. But the age designation. Ancient people sometimes did not use numbers to indicate their age, not directly say how old someone is or how old they are, but use an age-related title instead. For example, tufts of hair (tiao) were children between the ages of three or four and eight or nine (tufts of hair, the short hair hanging down from a child's head in ancient times). A tiao is a young man between the ages of eight or nine and thirteen or fourteen (in ancient times, children divided their hair into left and right halves and tied them into a knot at the top of their head, which was shaped like two goat horns, hence the name "tiao"). Cardamom is 13 or 14 to 15 or 16 years old (cardamom is a plant that blooms in early summer, and early summer is not yet the height of summer, which is a metaphor for a person who has not yet reached adulthood, so it is referred to as "cardamom years" when a person is a teenager). P.S.: Ancient age designations for girls
Under age ---- swaddling clothes;
2 to 3 years old ---- childlike;
The age of a girl is not yet old enough to be a teenager. --childhood;
Girls 7 years old ----- tufts;
Young age generalized as ---- total horn;
under 10 years old ---- yellow mouth;
12 years old - the year of the golden hairpin;
13 years old - the year of the cardamom,
15 years old- -- the year of maturity;
13 to 15 years old ---- the year of the dancing spoon;
16 years old- -- the year of the broken melon and the jasper;
20 years old -- the year of the peach and the plum;
15 to 20 years old - -- the Year of the Dancing Elephant;
24 years old -- the Year of the Flowering Letter;
To the Marriage - -- the year of the plum;
To 30 years old -- the half-aged woman;