Probation: not just for ex cons

When one starts a new job, there is a time frame called 'probation' in which the employer can fire you without a reason. This is not a good time for the new employee, who is trying desperately to do a fantastic job in a short period of time, and to be loved by everyone. An impossible feat. What about the rights of the employee? Why don't we get a time where we can 'fire' an employer and get subsidized by the gov't until we find an employer 'who fits right in'.