The phrase "allows for fewer" is correct and usable in written English.
It can be used when discussing a situation or method that enables a reduction in quantity or number of something.
Example: "The new software design allows for fewer errors during data entry, improving overall efficiency."
Alternatives: "permits a reduction in" or "enables less".
Manhattan's number is relatively small because its rectangular grid allows for fewer open spaces between intersections.
She recently changed her hairstyle to include bangs — a camouflage technique that allows for fewer Botox injections, she said.
The lack of script modification needed for a male lead to be played by a woman also allows for fewer clichés.
This interconnection between the longitudinal and lateral driver models allows for fewer driver model parameters and an increased modeling accuracy.
Its most notable feature, however, is its 3-inch touchscreen display, which allows for fewer mechanical buttons on the case.
We believe that compliance with these anatomical and biomechanical objectives allows for fewer recurrent subluxations and less residual pain, leading to a better clinical outcome.
Pentagon officials have emphasized that they are being asked to create what has become the most sophisticated weapons system ever on a "rigorous schedule" that allows for few failures.
It allows for few exceptions, such as clearing land for development, farming and creating fire breaks to protect life and property.
So I have always felt that the hand we have been dealt mattered a great deal - and that institutional inequality - as we have it today - allows for few poor boys or girls to rise in the world.
The state polls allow for fewer direct comparisons, since most of them take the temperature of a state at most once every few weeks.
They created a separate category of crime (the "crimen exceptum") that allowed for fewer restrictions on torture and fewer safeguards against self-incrimination.
