Moreover for a Muslim man, ALLAH ALMIGHTY also Orders him to lower his gaze. In this context ALLAH ALMIGHTY Commands in the following verse of SURAH NOOR:

24:30] Say to the believing men that they should lower their gaze and guard their modesty: that will make for greater purity for them: And Allah is well acquainted with all that they do.

Here it is also to be kept in mind by all the believing MEN that such orders of “lowering the gaze” were first ordained onto them and in the very next verse same orders were prescribed onto the believing women.
But what happens commonly in the Muslim societies today is that,

“PARENTS DO WARN THEIR DAUGHTERS NOT TO LOOK AT MALES BUT THEY FORGET TO TEACH THEIR SONS THAT THEY TOO ARE STRICTLY PROHIBITED BY ALLAH ALMIGHTY AND HOLY PROPHET (SAW) TO NOT STARE AND RAISE THEIR GAZE TOWARDS FEMALES.”

REAL TRAUMA:
And no doubt this is the crux of the matter why Muslim Societies Today are ruined and going onto the verge of disaster. Its parents’ duty indeed to tell their children both sons and daughters, about the clear cut commands of ALLAH ALMIGHTY, so that there may arise no indecent, immoral and unethical situations as today we are seeing and unfortunately facing in our Islamic Societies. In fact if the children are being warned about these all commands from the very childhood and are bewared that in case of disobedience of such rules they ll have to face ALLAH ALMIGHTY’S wrath & RASOOL ALLAH (SAW)’s anger in both the worlds, then from the earliest age, a sense of aversion from all such prohibited acts ll develop in them. They ll realize that from these things ALLAH ALMIGHTY WILL BE ANGRY at them and this concept will be so firm in their minds that on reaching the age of maturity they ll never ever INSHA ALLAH TALA indulge themselves in any indecent, UNISLAMIC Acts.