Propaganda or hired PR team influencing the discourse?
A few of us wear suit jackets now, but I think that's just to stand out from the crowds of jeans and t-shirts that became my generation's accidental dress code.
(Though perhaps I'm just projecting; on the rare occasions I wear a suit jacket, that's what I'm thinking).
1) blazers, specifically, are awesome, they’re wearable purses that also make you look sharper. They’re a superior version of the open button-up shirt I’d wear in high school because it was trendy back then and which also had (less well-realized) utility and useful-in-a-pinch value, and
2) loafers are the best shoe for everyday not-very-active stuff, and it’s not a close call. Slip on! It’s insane that they’re considered even a little dressy. A small miracle.
Look at Indy’s suit early in Crusaders for an example.