Metric? Keep or change?

[Flyndaran]

I don't see the nation becoming metric-centric any time soon.
It just seems like demanding everyone speak English as a first language. It would make international communication easier. But when that's necessary, people can just learn it as a second language.
Same for metric and American systems.
Getting upset that most of your prospective American customers want measurements or words different than what the rest of the world prefers seems a bit egocentric and silly. You can't make your audience want something by shoving it down their throats.