Pretty much no other developed country has this. Hell most Eastern European countries don't have this.

>Pretty much all of them except a few European nations.

Where on earth did you get that idea?

There are no affluent western nation besides the United States with "At Will" employment except perhaps Israel (I was unable to confirm).

Israel isn't "at will"...

Thanks. I saw that mentioned on Quora but there was no citation provided.

The UK effectively has at will employment for the first two years. (But with Equality Act protections for people with protected characteristics: you can't fire someone because of their gender, for example).

It's one week up to 2 years.

Not great, but "at will" means 0 notice.

https://www.gov.uk/redundant-your-rights/notice-periods

The law and details varies by province/territory in Canada, but in every single one of them you are due form of notice/pay in lieu of notice. I.e. they have to pay you for X weeks after they tell you they are firing you, they might require you keep working for those X weeks.

I really like the Alberta model[1]. Employers are required to give a few weeks notice when firing without cause, and employees are required to give a few weeks notice when quitting without cause.

The notice periods are not excessively long, but they give both parties a chance to prepare for the change. A few weeks might not be enough time to hire a new employee or find a new job, but it should be enough to put together a plan.

The ability to fire or quit without cause seems like the part of 'at will' employment that's most important to economic efficiency, so it's nice to have a kinder system which still includes that.

[1]: https://www.alberta.ca/termination-pay.aspx

I am not sure about that... Not in Brazil at least

One of the few things I miss about Brazil is how much more protection I had there as a worker compared to the US.