Why is lowering the gaze not emphasized upon if it has been mentioned explicitly in the Quran for both men and women and would probably solve a lot of problems in society?
Lowering the gaze has been emphasized upon in Quran very explicitly as we read the order of Allah to the Prophet (Tell the believing men to lower their gaze) Sura Al-Noor, verse 30. Same order was given for the believing women to lower their gaze (Sura Al-Noor, verse 31).
Those who remember Allah and obey His orders as obligatory order, Lowe their gaze and protect themselves from looking at sinful scenes.
We have many authentic Hadeeths in this regard which also emphasize on lowering the gaze and the punishment of those do not lower their gaze.
Wassalam.