I don't see this often, but when I see someone wearing a necktie with a t-shirt, I feel the urge to cringe with embarrassment. Why on earth would someone choose to wear one of those nooses with their casual clothes, or any time they didn't have to, for that matter? I suppose they just like the look of it, but personally, I think it looks silly. It's the lack of a collar, really. Ties look fine on shirts, with a collar to fold over the top, but on t-shirts, the tie looks very loose around the neck, which looks sloppy rather than suave or professional. Again, this is all just my personal aesthetic opinion, so to each their own.