There is a cultural phenomenon called schismogenesis - the tendency for one culture to define itself by how it differs from other cultures around it. Even in cases where the culture Y approach is “better” by whatever metric, culture X people will reject it because it’s a Y thing and not an X thing. I see the US rejection of the metric system under Reagan being the most glaringly obvious example of this, but the time thing is probably part of it, too.
I just really wish we hadn’t gone with the whole base 60 system in the first place.