Sentence:  I don't find the pose of careless <WSD>youth</WSD> charming and engaging any more than you find the pose of careworn age fascinating and eccentric, I should imagine. 
Meaning of the word marked with <WSD> tags:  The part of life following childhood; the period of existence preceding maturity or age; the whole early part of life, from childhood, or, sometimes, from infancy, to adulthood.