"digit age" is correct and usable in written English.
It is typically used to refer to the current era of technology advancements and digital devices. For example, "The digit age has made it easier for us to find information and communicate with people around the world."
Back in the days when having a double digit age was an enjoyable oddity, there was nothing like whipping out your finest H&M polo shirt for a night down the school disco.
If your older pet is silently suffering from dental pain, don't make the mistake of not having a complete oral health examination and treatment under anesthesia because her or his double digit age.
Take your dog's age (if it's a single digit age) and add a zero to the end.
Our obligation is to assure that good care for children does not stop when they reach a double-digit age; stressed parents do not make great role models.
Most of the paper folders are in the single-digit age range, but a few adults do pop in, like Shelley Rauchberg, 68, a retired photographer from the neighborhood.
Life expectancy research released by the Department for Work and Pensions this month reveals that 10 million Britons can expect to enter triple-digit age, representing 17 per cent of the total population.
But you can imagine the young Cameron, during his long unwitting rehearsal for the Bullingdon Club, practicing his preteen tyranny in front of a long-suffering Mary: smashing porcelain plates, screaming at all hours, demanding to breastfeed well into double-digit age and biting when she lets him.
How has the role of digits changed in the digital age?
Coming across a handwritten list of the dead and its accumulation of single-digit ages filling a column.
Not surprisingly, given their triple-digit ages, even fewer are still able to show the flag in public.
A multiple regression model was employed in analysis of possible relationship between number of children (dependent variable) and three predictors: digit ratio, age, and sex.
