Without wanting to sound facetious, these place are not even save for the cops, never mind the electricity works... etc.
Having said that, I personally ONLY have the absolute best experience and NEVER had ANY issues with either black OR white folks.
They ALWAYS very courteous... I think it might be my age; also I may pass tolerably well too.
Axélle
PS: I have a notion it is a LOT about the fears of cis-folks, 'corrupting' their youth...
I'm not allowed to see my 7 year old granddaughter for this argument/fear.