Fudging our age is a time-honoured tradition. In your teens you'd typically add a year or two - usually to ensure access to licensed premises or else just to appear generally more mature and wise.
Some women of a certain age, often somewhere in their 50s, can become very evasive, and almost obsessed with minimising and lying about their chronological age.
Being creative about your age is a practice said to be rife on internet dating sites.
There's many a woman who thinks 47 sounds way more desirable than 51 which is all very well if the relationship doesn't progress beyond one or two dates - but what happens if something long-term develops: do you front up or do you keep the charade alive?
What motivates us to lie about our age? Is it driven by vanity, shame or simply the awareness that society places such a high value on youthfulness? Perhaps it's for practical reasons such as to snag a man or to get a job. And if a tangible benefit is being achieved, does it make the prevarication even less acceptable?
In Are there benefits in lying about your age? it was reported that a Texan actress is suing Amazon and the IMDB for listing her age as 40. Never mind the fact that it's true; evidently it was having a negative impact on her career to the tune of US$75,000.