This maximizes returns on capital at quarter and even decade timescales.
This doesn't make sense. Governments want children and immigrants because they need a tax base to stay in power.
As for businesses, they want employees doing things that project stability, such as getting a mortgage (a lot of companies give off time to close one), getting married, and having children. People who do that don't rock the boat and don't speak up because they have a life outside of work they need to upkeep with their paychecks; so they stay good worker bees.