The reality is, alot of nikkas don't know when to quit. Alot of dudes, ESPECIALLY hood dudes, keep trying to talk to a chick even after they get rejected. I've seen this happen too many times to try to act like it doesn't exist.
Chick saying she has a bf = Rejection
Chick ignoring you = Rejection
Alot of dudes don't understand this tho, and they're forever persistent, and chicks get to a point where they are automatically on the defensive whenever a dude approaches them.
At the same time alot of females be on bullshyt. Alot of girls go out of there way to try to clown any nikka that approaches them, even if he does it respectfully. Females don't think they owe you respect just because you approach them respectfully, so as a man you have to have that same mentality.
This reality, combined with the street harassment movement is why I don't even waste my time approaching females in public anymore. I also don't hold open doors or give up my seat for any female unless she's old or pregnant.
The days of chivalry, and the days of introducing yourself to random chicks off the street are all but over. We're entering a new age.