Don’t judge other people’s psak. A women in a professional business such as a lawyer or that sort, that often needs to shake hands with men or else they will appear rude can probably get a heter. A doctor, nurse, dentist and any other medical person falls under a different catogory of halacha which is mutar.
I was once a bus going to Williamsburg and was paying while the bus was driving and I had men behind me that were stamping and muttering nu! because they didn’t want a woman standing in front of them. Then when I had to walk back to the of the bus to the women’s section I almost fell on the men because I couldn’t hold on to the seats because there were men there. I learnt that a woman is not supposed to walk between two men so how is it ok the way the bus is set up? Correct me on the halacha if im wrong