Shortness puts people at a marked disadvantage. Short children are more likely to be teased and bullied (called names such as "shrimp", "midget" and "dwarf") and start failing at school. Later they find it harder to get jobs and to adjust socially as adults.
In a sample of more than 5,000 men who passed a US Air Force Academy entrance examination after 25 years those who were between 1.65 and 1.68 metres tall earned $2,500 a year less than those who were between 1.80 and 1.85 metres tall.
Constitutional shortness is not a disease. There is nothing wrong with these short children. What is wrong is society, the biases, the discrimination. But don't address the biases of society by changing the psychology of the individual.