Thank the Lord I am not a street photographer (though I am often involved in documentary filmmaking). IMO it is 100% a grey area and it's ultimately about what you can get away with, what personal relationships are acceptable, etc. Recently I've been photographed on the street several times by street photographers and I really don't mind it, they were shooting from fairly far away or being pretty subtle about it. The legality of photographing people is generally quite free, so it comes down to what your subjects feel comfortable with in the moment (the shot you can get) and whether it will be socially sustainable for you in the long run if people complain or come after you.
Thank the Lord I am not a street photographer (though I am often involved in documentary filmmaking). IMO it is 100% a grey area and it's ultimately about what you can get away with, what personal relationships are acceptable, etc. Recently I've been photographed on the street several times by street photographers and I really don't mind it, they were shooting from fairly far away or being pretty subtle about it. The legality of photographing people is generally quite free, so it comes down to what your subjects feel comfortable with in the moment (the shot you can get) and whether it will be socially sustainable for you in the long run if people complain or come after you.