Ignorance is blessing?

As long as you are a school boy, you are unaware of dangers of traveling on the roofs of buses. Perhaps, youth's physical energy dominates the mind energy. Adventure of climbing the buses, trees and mountains runs high in this 'period of ignorance'.
There is no responsibility of earning but only of learning. This no tension era is really golden one in terms of playing, gossiping and enjoyment. But as the sagacity takes the driving seat, perspective on matters of life takes a U turn. Then you can only remember 'good old days' and you have no time at all to redo your past.