Yes, agreed, it’s a matter of degrees. It’s chipping away at the identifying information we’re allowing out. It’s sad that it’s being abused for profit, but here we are.

It depends on the mask in this case e.g., a full face mask is going to be more effective than a half face mask. Walking around under a sheet with holes in it will also hamper gait analysis, but then you’re the only one walking around in a sheet.

Edit: the answer is clearly free burqas for all.