You may want to explain your theory?
WG imposes NBA policy cos of local youths.
Same WG speaks to Black punter and states yeah, I don’t mind seeing.
How does her screening protocol filter, the bad black punters? Don’t black punters from Newham, have the skills to engage a WG over the phone?
I think the question you are asking is the wrong one here.
This issue is about WG's safety, how they perceive themselves to be safe, irrespective of whether it is objectively true or not.I am guessing here because I do not know. I suspect Leila may be thinking if she advertises an NBA policy it will limit the number of Blacks attempting to see her in Stratford/Westfield. Obviously it will not eliminate all - as we have already seen.
For those who persist to see her, she may well be able to deduce over the phone whether a particular potential client is pleasant or not
So for arguments sake, let suppose a Black person speaks to her on the phone - or even any youth - who may not be Black, saying:
"Yes fam, how much do yu charge for de tings??''...
"Do you git me??!",
"That is a bate price!!" etc etc then she will think that they
could be Black, and if not, they are definitely young, and she may not wish to see them based upon this stereotype of speech.
So from the WG's perspective it is about controlling as many safety variables as possible - even though you cannot logically control and/or compensate for all.
If you follow?