The phrase "age needed" is correct and usable in written English.
It can be used when specifying the minimum age requirement for a particular activity, role, or event.
Example: "The age needed to participate in the competition is 18 years or older."
Alternatives: "required age" or "minimum age".
The idea that his CV, or for that matter, that of Oscar Wilde – "I was a man who stood in symbolic relations to the art and culture of my age" – needed an edit by the two stupidest governments in living memory is as vain as it is absurd.
The British Army raised the minimum age needed to serve in Northern Ireland to 18 in response to this incident.
However, the provincial-level conferences were not completely dormant and scored some minor victories, such as reducing the average age needed to join an executive committee and they adopted a more flexible and efficient mode of planning and organization.
There was so much bad stuff going on in the trans community because of the awful things that happened to Leelah [Alcorn, the transgender teen who recently committed suicide], and I thought trans kids my age needed a boost of positivity.
In both kidney and liver patients, children younger than 5 years of age needed more tacrolimus than older children.
For this study, we excluded 491 women who were either missing information on BMI or GWG (the principal determinants of interest), missing information on gestational age (needed for outcome variables) or were less than 18 years old because the BMI classification we used was derived for ages 18 and older.
And the retirement age needs to be increased further.
Every age needs a Lenny Bruce - and every age will try to kill him.
SOMETIMES a building of a certain age needs a makeover to throw off decline or neglect.
Everyone, whatever their age, needs a project, something worth getting up for in the morning.
A woman of my age needs diamonds near her face, to give sparkle".
