With any reasonable PODs past 1920s make USA states commonly implement west-european style (or maybe even OTL Scandinavian or East Germany style) of labour codes and social security/welfare system, while staying in the mainstream of 'American Dream' expectations.
So, more or less, by the year 2000 american society, legislation and business practice must embrace following things as 'taken for granted':
- minimum wage as a living wage for most causes of employment
- at-will employment goes to extinction and being replaced by employment contracts massively
- contingent work and McJobs are commonly treated as employer sins
- strictly controlled overtime work
- compulsory health insurance
- compulsory maternity insurance and paid leave
- compulsory sick leave and disability leave
- compulsory yearly paid holidays no less than 2 weeks
- occupational pension instituion implementation
- educational leaves etc etc
This thread was inspired by massive AH discussions of 'why there can be no national healthcare in US' style
Bonus: Additional points for making this in the 1950's - 1990's time period.