[logicallee]

yes, you're right, especially in America, corporate jobs are standardized, and it's more common for the employer to have a standard set salary offered.

I was just describing the point of view common in some other countries, in which case the employee is expected to come up with their requirement and state it. Neither one is correct or incorrect. (And both have real-world analogies - for example, auctions, which can also be an analogy for the job market in that there's only 1 of specifically you, where bidders have to offer an amount rather than the seller saying how much something costs.)