The phrase "a practical necessity for" is correct and usable in written English.
It can be used when discussing something that is essential or required in a practical context.
Example: "In today's fast-paced world, having reliable internet access is a practical necessity for remote work."
Alternatives: "an essential requirement for" or "a vital need for".
The return of flight capital is a practical necessity for the country to keep growing.
A Cambridge University study in 2012 concluded that much of EU criminal law is a practical necessity for a mass opt-out to be desirable, and that the UK should maintain its participation in these measures.
I'm embarrassed to recall that my adolescent love of words doubled as a strategy to assuage those fears; it was both a pitiable desire for acceptance and a practical necessity for survival.
"There will be some circumstances in which it's right for public bodies, for example at the border, at airport security, to say there is a practical necessity for asking somebody to remove a veil.
But, she continued, "There will be some circumstances in which it's right for public bodies, for example at the border, at airport security, to say there is a practical necessity for asking somebody to remove a veil".
With material from earlier albums Tékitoi and Diwan fitting in seamlessly, the internationally recognisable language of dance is a practical necessity for a man whose occasional spoken interludes demonstrate a comically loose grasp of English.
A practical necessity to prepare for the potential loss of phosphine is identifying a replacement compound.
Reduction in water vapor permeability is both fundamentally important and a practical necessity in the polymer industry for packaging and protective applications.
"In my view a deal with the BBC is a practical necessity, otherwise the money to pay for the programmes after 2013 will not be there".
