The phrase "necessary choices" is correct and usable in written English.
You could use this phrase in a sentence like: "Sometimes life requires us to make difficult, but necessary choices."
"These are the difficult but necessary choices that you have to make in government.
It will require all parties ‑ including Israel ‑ to make difficult but necessary choices," she said.
"We're going to have to make some tough but necessary choices" during the coming budget negotiations, Mr. Francis said.
It's too often a way of sounding smart or leader-like and used to avoid necessary choices.
If he makes the tough but necessary choices, the Legislature, the unions and others will protest fiercely.
Still, there is one moment in this relentlessly self-critical account of the necessary choices and rejections involved in songwriting that made my eyes brim.
Clinton, he said, was the necessary choice.
"He thinks they provide a necessary choice for people whose kids are in failing schools".
In order to achieve the emission regulations, the after-treatment system is a necessary choice.
During their decision-making process patients perceive surgery as a voluntary yet necessary choice.
Take a hard look at the agendas of the campaign". Clinton, he said, was the necessary choice.
