Veltz meshugener: I’m not quite sure what you mean by “Gateshead being Gateshead” – it’s written quite clearly that ‘tefach be’isha ervah’, so any girl revealing a part of her body that should be covered is being oiver the same issur as she would be if going with trousers, or a sleeveless top etc.
And if you think that’s just for the ‘frummers in Gateshead’, those ‘radical, oppressive extremist freaks’, and that ‘times have changed’, then that’s well on the path to Reform, R”L.
The Halachah is unequivocal on this point – any girl immodestly dressed ie. not dressed in accordance with the strict halachah, is being oiver on an infringement into gilui ervah, literally.