How is a nation's education related to culture?

Think about it this way...
Stronger culture means a stronger education, same thing likewise (weaker culture, weaker education).  The more in-depth people are into each other and society itself, the better it stands amongst the other nations in education.

Difference in experience.

Explanation:

On average, younger people tend to have higher risk tolerance compared to the older people.

This happen because People in young age tend to have less amount of experience about the situation on the world compared to the older ones.

Because of this , some of them often engage in behaviors that have high risk. They could've done it simple out of curiosity or simple because they're clueless on the negative effect that it might cause in the future.