So, we know that duty was praised a lot in Imperial propaganda - as in becoming a Stormtrooper, a pilot or even just reporting your neighbour’s suspicious activity.
I wonder if this was emphasised with reproduction too? Encouraging humans to have children, donate sperm or be a surrogate mother for the next generation of loyal Imperials?
Hell, I had this idea once for a propaganda poster of two stormtroopers and a cadet - encouraging Imperials who have children to have their kids taken care of by professionals while their served the Empire full time.
Perhaps many would only see their kids every month or so…..