I believe the answer is: Script
In psychology, script would determine the set of behaviours that a person tend to do when facing a certain situation. The formation of script usually influenced by several factors, including knowledge, previous experience, relationship with other people, or even personalities.
 
        
             
        
        
        
They must assume that the are not that good in the business industry
        
                    
             
        
        
        
Strong land army, Much protection is Sparta.
        
                    
             
        
        
        
Building human capital as early as elementary school is needed because you begin to learn knowledges and skills that prepare you for real life. ... The more learned and skillful we are, the higher our value as human capital
        
             
        
        
        
The "19 kids and counting" was a famous TV show of a populous family, the Duggars, who were Baptists and they avoided birth control saying that they God will determine the number of kids they would have.
This cultural norm proved to be self destructive in many cultures. There are many countries in the world that exercise birth control. 
- CHINA  is the best known case. Established in 1979, Chinese families are fined if they have more than one child. Wealthy families can afford to pay that fine ( 3 to 10 times the household income) but poor families struggle and they often go to Singapore or emigrate to the States.
But, there are other countries that also exercise birth control policies.
- India is paying families to wait to have babies. The state offers newlyweds money if they wait for 2 years before having their first child.
- In Uzbekistan, the government has instituted a policy of forced sterilizations of women after their second child.
- In Pakistan, authorities are promoting child spacing by encouraging 3 years between babies, something supported by the Koran, which recommends 24 months of breastfeeding.