I'd simplify the above. It's hard to make any argument for switching, because it's annoying to change habits. That's about it. Even if it offers advantages, so

I'd simplify the above. It's hard to make any argument for switching, because it's annoying to change habits. That's about it. Even if it offers advantages, some will be reluctant, because of the above habit issue. So they should just push metrication, period, instead of dragging it for decades. Other countries did it successfully including for temperature, so how is it a bigger problem in US than for them?