Everything you say is spot on. I was just pointing out that my employers, the Fed, a large bank, a large law firm, and state government at the level of running large agencies, were all comfortable with my peculiar ivy mode of dress.I take it WOCBD is white oxford cloth button down collar. There is a school of thought that button down collars are too informal to wear with a suit. I quick Google of photos of top CEOs indicates this is not a school with a large alumni among the business elite. Button down collars with suits seems to me a standard prep/Ivy style, Same thing for cuffs with non-pleated trousers. But, as always, I cannot speak for every industry in every geographic location.
I am with Doc4. We are trying to give generic advice as to clothes that are most likely to be seen as conservative, acceptable, non-offensive business attire on a young man in the most places. I own and wear wing tips, but they do not seem "in style" these days, and thus might seem more noticeable on a young man. I like chalk stripes myself, and I suspect they are fine in my profession. I cannot speak for other industries or professions. The guy in the video discouraged chalk stripes.
As John Malloy concluded long ago in Dress for Success, I think rep striped ties are fine with chalk striped suits for American business wear. I think he would say rep striped ties are okay with a striped shirt and a chalk striped suit. I do not think I would go that far. For that matter, I do not see as many rep ties these days as I used to. Foulard with a striped suit might be the safer choice, if anyone had any concerns. The guy in the video warns against wearing rep ties that represent a particular organization that one is not a part of. I guess I would say even if you are a part of such an organization!
I am not sure. I would discourage loafers for job interviews. But Alden tasseled loafers are a classic and thus arguably a conservative style. As I understand it No. 8 is a intensely dark brown with some red or purple hue to it. Classic shell cordovan color, which some might refer to as oxblood, but to me there is a difference. A perfect dress shoe color to me. Better and more versatile than dark brown as it is a richer color, and can substitute for black in most instances where black might be thought of as required. I do not see a lot of young men wearing this style. I am not a good judge here. I would probably be impressed with real shell cordovan tasseled loafers.
Just my 2 cents though. And, of course, it is most important to be confident, to be prepared, and to give good answers in job interviews.