Who mentions "unfortunately my son's not all that they promised. but then again, who knows what he could do."?

The quote reflects the sentiments of a parent who grapples with the realities of their child's abilities compared to societal expectations. In the context of GATTACA, Lamar, who is the admissions director, expresses a nuanced view of genetic engineering and its limitations. His statement highlights an acknowledgment that even genetically engineered individuals may not fulfill all predetermined potentials. This reflects the underlying theme in GATTACA regarding the unpredictability of human potential and the value of perseverance and individual determination, regardless of genetic background. Lamar’s perspective underscores the film's critique of eugenics and the complexity of identity beyond genetic determinism.