This is very different
Most random encounters have a pretext, from smoking a cigarette to talking to the shopkeeper, or being in a queue for a long time.
Talking to a woman ( esp given that many of them are harassed from what I understand from my female friends ) without any reason to is much harder
Cold approaches worked better before social media and smartphones . now your awkward encounters can live forever online and cause humiliation for years to come , or some stranger looking for clout may step in. This is has become so common now , because everyone wants to be a hero.