'curtail opportunities' is a correct and usable phrase in written English.
It is typically used to describe the act of limiting, reducing, or cutting out opportunities. For example: "The new changes in company policy have curtailed opportunities for employees to receive a bonus."
It tends rather to reflect the economy's weaknesses.The ongoing energy crisis and other infrastructural problems have curtailed opportunities for private investment.
Many suppliers complained that the government had accepted low bids from companies that had little experience in the industry, while curtailing opportunities for family-owned businesses that had served their communities for many years.
Keen to cool overheating residential-property markets, the central government has restricted purchases of multiple homes, demanded larger down-payments and curtailed opportunities for speculators to "flip", or quickly sell on, properties.
To halt capital flight, he pegged the bolívar, Venezuela's currency, to the dollar (the official rate is now 2,150 to 1), and sharply curtailed opportunities to buy dollars at that price.
In his acceptance speech for best dance release, Flume rallied against Sydney's controversial lockout laws, which he said had curtailed opportunities for young musicians that he himself had benefitted from.
For expats, it is complicating life overseas, curtailing opportunities in everything from jobs to getting bank accounts -- and, of course, potentially raising their tax burden.
Security concerns and travel restrictions imposed by the state severely curtailed opportunities for commerce.
Given the importance of neighborhood poverty to upward mobility and wealth building, this case had the potential to be the most destructive, dramatically curtailing opportunity and making the wealth gap into a chasm.
It could also curtail advancement opportunities for male and female officers.
At the same time, states – as duty-bearers – have the responsibility to implement a system of health protection that includes the provision of an adequate network of services, but also the reduction of inequities that may curtail the opportunities of certain groups to stay healthy – the so called social determinants of health (26– 26).
The lawsuit against Hearst states, "Employers' failure to compensate interns for their work, and the prevalence of the practice nationwide, curtails opportunities for employment, fosters class divisions between those who can afford to work for no wage and those who cannot, and indirectly contributes to rising unemployment".
