[kuyan]

From https://www.ncsl.org/research/labor-and-employment/at-will-e...

> Employment relationships are presumed to be “at-will” in all U.S. states except Montana. The U.S. is one of a handful of countries where employment is predominantly at-will.

> At-will means that an employer can terminate an employee at any time for any reason, except an illegal one, or for no reason without incurring legal liability.

Also, retaining a lawyer is prohibitively expensive for much of the workforce (even with free consultations, and excluding public options like filing complaints with labor bodies)