The Roles and Weapons with the Squad

[Rifleman]

Tragic fact is that humans lose intelligence after their 15th year. We become dumber and dumber and need to compensate for this with education, training and experience.
That's why your age is relevant for IQ test; the IQ is a measure relative to your age group only. An IQ 120 person at 70 years answers much less questions correctly in such a test than an IQ 120 person at 20 years.

Young people are also less encrusted with cognitive dissonance issues yet.

That's it, Ken. "Cognitive dissonance issues." You're done.