"The eight-hour day movement or 40-hour week movement, also known as the short-time movement, was started by James Deb and had its origins in the Industrial Revolution in Britain, where industrial production in large factories transformed working life. The use of child labour was common. The working day could range from 10 to 16 hours for six days a week." in https://en.wikipedia.org/wiki/Eight-hour_day
A gentle introduction enough to solve basic ignorance: https://en.wikipedia.org/wiki/Labor_rights#Labor_Background
You can also look up the fact (and wonder why) that the USA is one of the very few countries in the world that doesn't assure paid vacation time and, right up there with Papua New Guinea and Suriname, is one of the three countries where there's no assured right to parental leave.
It appears that societies at large have a "narrow interest" in not working (for breadcrumbs, mostly) from cradle to grave.