There's no need for either designated probationary periods or notice periods. Social safety nets are a good thing in general but should be provided directly by governments rather than by private employers obeying government mandates. Imposing any requirements on employers beyond basic health and safety rules slows down economic growth and hurts everyone in the long run.
Risk of having your life upended by someone else's whim causes stress, chronic stress on a population has a long term health cost. Imposing requirements on employers reduces stress and helps everyone in the long run.
