Identifying 1 event that lead to florya's coming-of-age mentally

One event that represents this topic was when Florya was digging for the gun. Florya was not mentally capable of thinking further into the pro's and con's that dealt with him looking for that gun. Florya taught that looking for a gun and joining the Russian army was a game and that it would be fun. (he was wrong) Florya had a mind of a child, he only taught about having fun and not one of the consequences that were ahead of his horrifyng future.