It's not that hard of a transition. Calculating changes to metric is harder than just going metric. It's a pointless step, when all it takes is just getting used to seeing what centimeters and meters look like.
For some odd reason in the US, ski lengths, which are important for a proper fitting, have never been done in inches. It's always been in centimeters, and I have never heard one American skier complain that this is a problem. We just know what 200 centimeters, plus or minus, looks like. But trying to figure out how many inches that is would drive me nuts. It's not a problem to live with metrics. It's a problem trying to live with two systems when only one is necessary. There is a reason why the rest of the world uses metrics. It just makes more sense. Of course, to old farts in the US, it makes no sense, but that's our fault.