"mandatory for everyone" is correct and usable in written English.
You can use it when you are referring to something that must be done or is required by everyone. For example: Attendance at the annual meeting is mandatory for everyone.
Gloves appeared mandatory for everyone else.
Courses in political education are mandatory for everyone.
Consent lessons will be mandatory for everyone, for all genders and sexualities.
Unlike congestion pricing, which is mandatory for everyone and usually requires legislation, "incentives can be started incrementally and are voluntary," he said.
Because some officers may fear being perceived as weak if they seek help on their own, the decision was to make counseling mandatory for everyone.
The counseling sessions, the first to be made mandatory for everyone in the nation's largest police force, are partly inspired by a similar plan used for rescue workers after the Oklahoma City bombing in 1995 and will be financed by the Police Foundation, a private nonprofit service group for officers, and conducted by mental health professionals at Columbia University.
If "mandatory" weren't a word to make any vigorous-minded artist kick, I'd say that it should be mandatory viewing for everyone in film school and even anyone who is contemplating applying.
That is a big reason the insurance industry continues to push for mandatory coverage for everyone.
Liberals subtly agitate for rampant pornography and mandatory abortions for everyone over 10.
But we need as wide an influx of students as possible and, in an ideal world, there would be mandatory grants for everyone who qualified for a drama school place.
Five-six weeks mandatory vacation for everyone?
