Everyone is an old fuddy-duddy in their own way; that is the REAL crux of all discrimination. So, yes, the employment standard should be ability to best do the job: What other standard is non-discriminatory? How many people resent what we did instead, not because they are bigots, but because they do not want to lose their livelihood to someone with no qualifications but the "right" color, gender, etc? Professional attire for professional duties falls within job qualifications, but basing employment on anything that does not is discrimination on its face.

Also, and once again, I am not sure any of that should have the force of law for private businesses, whose owners should be free to be as bigoted as they like as long as they commit/incite no violence. That will have inevitably dire commercial consequences, but should not have legal ones.