In many work environments and cultures, it's not so easy. A single "no", even after a long row of "yes" can put you in an unfavourable position. I was once work

In many work environments and cultures, it's not so easy. A single "no", even after a long row of "yes" can put you in an unfavourable position. I was once working in an outsourcing company that was onboarding developers in various short-term projects, for a usual duration between 3 to 6 months. When your project is over, they try to allocate you as a resource to another one, with a different team, different tech stack, different working hours and different work culture. I said "no" to a project that was IMO a bad match for my skills and interests, and that was the downward slope towards no further promotions, my isolation from management and my eventual departure.