Why would there be another push?

The units in place are perfectly functional. There's no lack of ability to use SI/"metric" measures, particularly in fields where it matters. It would be absurdly expensive to shift everything all at once, and doing it gradually means switching to dual systems in common life first, so it would be doubly expensive.

Hell, there's not even significant benefit to everyone using the same units of measure, and there's significant benefits to knowing how to use both decimal and fractional systems of computation. So the only gain for the average person would be not having to hear people whine about the subject. You'd still have to learn how to do fractions because it's a fundamental skill.

I still don't get why people even care other than their own laziness. And that's regardless of whether it's an american whining about dealing with SI units they aren't used to, or other people whining about the U.S. not jumping on board. It really isn't something that matters, and if you're too damn lazy to learn how to convert units you use regularly, that's on the individual. It's basic math, not calculus. Fuck, if someone is too lazy to learn it, we have devices that will do the work for us. It's such a non issue. If you're in a field like medicine or engineering, you'll be using whatever is standard for that field in any professional interactions, and those units are likely different than what you'll run into in someone's home.