I definitely was not aware of this when I was younger, but after years of learning to be a better listener and learn about experiences outside my own, my perception is that there are unfortunately quite a lot of situations that most men would consider quite mundane but pretty much all women will have had to fear for their safety in. I guess I shouldn't be so surprised that when others have trouble conceiving of this phenomenon given how long I went without picking up on it, but now that I'm aware of it it's impossible not to see it everywhere.