The phrase "about their necessity" is correct and usable in written English.
It can be used when discussing the importance or requirement of something in a particular context.
Example: "The committee held a meeting to discuss the budget cuts and the implications about their necessity."
Alternatives: "regarding their importance" or "concerning their need".
For all the contractors' bravado — Iraq was packed with beefy men with beards and flak jackets — and for all the debates about their necessity, it is clear from the documents that the contractors appeared notably ineffective at keeping themselves and the people they were paid to protect from being killed.
It has been reported previously that poor adherence to nebulised therapy in adults was associated with doubts about nebuliser necessity and similarly, non-adherence to antibiotics and chest physiotherapy has been related to adolescents' doubts about their necessity in cystic fibrosis [ 10, 26].
The timing of these overlapping outages raises questions about their true necessity, and about whether some refinery capacity may have been taken offline in order to drive up prices and profits for oil refiners at a time when some of their crude operations have been yielding lower profits.
In this current study, we examined diabetic patients' beliefs about their medication necessity and potential harmfulness in an economically distressed community.
At least 20 questions here were about thank-you notes, their necessity, timing and wording.
These innovations, more than ever, stir debate about their cost and necessity.
He likewise expanded drone strikes against people suspected of being terrorists and until recently expressed little doubt about their wisdom and necessity.
"He called young people this country's greatest natural resource, and he felt this strongly about their education and the necessity of their education," said Hal Steinbrenner, George's son and the current managing general partner of the team.
If determinism is false, and free actions are contingent [i.e. accidental and truly free], then there can be no infallible knowledge of future free actions, since as long as they are future there is no necessity about their happening, and any prediction of them must have an element of conjecture.
There's cognitive therapy, in which a therapist will "zero in" on a person's irrational beliefs, primarily about their thoughts about the necessity of being perfect or feelings of worthlessness over not being perfect.
Participants described how their beliefs about the necessity of medication and their concerns emerged and evolved alongside unfolding experiences once they started on methotrexate.
