Well, as I'm the woman to whom that happened continually, I would think that I would know. Let me quote:
""Women will wear cleavage to attract looks from men in a certain age bracket. If the woman is in her 20s, she only wants other men in their 20s and 30s looking at them. Anyone above that age, overweight or not within their 'standards' staring at their chest comes across as creepy, weird and unwanted." One man in his 30s says a woman bearing cleavage is the ultimate cue for him to hit on to her.
Instead of being cowed, he takes her on, launching into a passionate defence of his action: ''If you really didn't want me to stare at your beautiful breasts, you'd be wearing something other than a purple sports bra covering maybe one-third of your perfect tits,'' he argues, suggesting, among other things, that he's biologically programmed to scan for life-giving breasts for his future offspring.
https://www.canberratimes.com.au/story/945229/busted-the-politics-of-cleavage-and-a-glance/
Try reading the research.
