The classic argument the Americans use is that we're a free market and democratic society and the employees concerned can also quit a job at a moments notice without needing to give and serve out a period of notice.
However, Canada, Australia, New Zealand, UK, Ireland, Japan, the EU, EEA, Israel and the UAE are also all free market and democratic societies, but do not operate employed at will contracts. An employer needs to go through a very rigorous and formal investigatory and disciplinary process to legally dismiss an employee, and can only do for very specifically defined reasons, which can also be contested for reinstatement and compensation before an adjudicator (judge) in an employment tribunal (labour court).
They sensibly recognise that job security is paramount, as without it, people can't ever plan for the future with mortgages, cars, starting a family, taking on financial commitments, buying things from the shops (which all help to stimulate the economy and create more jobs), and what happens if the boss just kicks you out for no reason in a bad mood at the age of 50 and you can't easily get another job very quickly?
Why is the US the odd one out in this respect as all the other advanced economies and G7 in the world have proper worker protection?
Read more: https://allmortgage.net/forum/why-doesn-t-us-employment-law-give-the-employees-far.html
