It's not like people will suffer
when their house suddenly gets a
proper address.
Like if you told the French they should all start speaking english to better interact with the international business community, or if you told programmers they should start wearing dress shirts so they look like professionals.
People become deeply attached to all kinds of arbitrary things, e.g. the particular shade of red used by their favorite sports team, or the exact shape of the cookies their family has baked for Christmas every year.
Both of those are also true btw.
For the French, I don't know, but you could argue that it would improve the French economy I suppose.
However, for programmers, I don't see the benefit: programmers do not have any trouble these days finding jobs, and in fact are in high demand regardless of how they dress. Dressing more "professionally" doesn't seem like it would actually help them any, so why bother?