I have no issues with the choice of wearing the burka.
However, were anyone has to prove their identity requires the removal of a mask, then the burka goes, too.
Many years ago I worked for a business that required a company ID card. The photograph on the card confirmed the person to whom the card was issued.
The burka wearer refused to remove it because it was against their religion to show their face.
Sorry, I don't accept agree with that in this argument no more than the burka in a driver's license picture.
Walk the streets, who cares. In situations were ID is required, remove it.