Unfortunately, this will make things even more confusing due to the amount of existing data in various state plane projections (almost all of which use us feet).
Then again, feet vs US feet is something you get very aware of very quickly as soon as you're working with geographic data. It's just that sometimes folks garble metadata and you're left with something that claims to be one, but is therefore offset from it's real location by large distances, and if you don't have things to compare it too, it can be very hard to detect incorrect metadata.
Either way, us feet are going to be with us for a long time. E.g. we still have (rare) things like "German meters" too. (Edit: I was thinking of vertical datums and Swiss maps, not German.)
The core issue is that when you are working with coordinates with absolute values in the millions, tiny differences in basically identical standards really accumulate.
Then again, feet vs US feet is something you get very aware of very quickly as soon as you're working with geographic data. It's just that sometimes folks garble metadata and you're left with something that claims to be one, but is therefore offset from it's real location by large distances, and if you don't have things to compare it too, it can be very hard to detect incorrect metadata.
Either way, us feet are going to be with us for a long time. E.g. we still have (rare) things like "German meters" too. (Edit: I was thinking of vertical datums and Swiss maps, not German.)
The core issue is that when you are working with coordinates with absolute values in the millions, tiny differences in basically identical standards really accumulate.