Earlier quoted context omitted.
I am not sure why you are being downvoted. It seems that much of HN has very little knowledge of (and interest in) business operations and employment law in other countries. I see your question as genuinely inquiring about this stark difference from what is common in Europe and other countries.
I didn't downvote the OP but I am picking up a tone of indignation that I don't quite understand. I find this pretty interesting. Here is my take on the situation: Let's say I own a widget factory and you are highly skilled at turning paper clips into widgets. We agree on a price for your time and I hire you to start making widgets. Things are going gangbusters, you produce a ton of widgets and I pay you for the time…
Why is it a good idea?
Employees less likely to leave without notice.
Employees stay longer because the safety net grows.
Less likely to speak poorly about you after leaving
More secure in their job. More emotional invested.
What are your reasons for not? Even if google stops selling at home they will keep the server alive for a grace period.
I had a friend who ran a bitcoin market. When the market shutdown he was responsible for customer records for 7 years and had to pay a company to secure access in case of requests.