A lot of people don't even know what appropriate attire is. I've always preferred my suits to fit just so -- just can't stand a suit that's baggy or wide. That said, have you seen the way many younger males wear a suit these days? High-water pants that don't even graze the top of the shoe and so tight that I wince just looking at them, and a jacket so narrow that one wrong move will pop a button or tear the back straight up and down, and a button stance that is entirely too low.
I hope proper suit fit is something these people are going to teach. it would be a public service.