There is no country that only uses Imperial. Americans use grams for weed. And technically what the US uses is called US Customary. Some units are different from Imperial. Funny thing is both Imperial and US Customary are legally defined in metric.
No, not all of Europe solved this. The payment systems they made are for internet payments with instant confirmation. Many European nations are still on the Visa Debit or Debit Mastercard systems for card payments. https://en.wikipedia.org/wiki/Maestro_(debit_card)
And then you die because a blood clot that formed in your leg came loose and shot up into your brain, because you’ve been sitting for weeks playing videogames.
But people are still living in it because the ramifications can be still felt today. People in those former colonies are poor because the state sanctioned privateers wreaked havoc in those countries. How is aiding in combatting economic crisis in those countries not helping developing nations?
The people are long dead but the states and institutions that benefitted from slavery still exist. Like for example the Netherlands, my country, benefited greatly from the slave trade and it started the Dutch Golden Age. The enormous wealth it brought back to the Netherlands made what the country is today. Even the riches of the Dutch royal family is build with spoils from the colonial past. It’s only fair that the Dutch state would use some of those riches to help the former colonies grow their economy where lots of descendants of slaves are living in enormous poverty. And these people are only four to five generations away from ancestors who were born into slavery, it wasn’t that long ago.
That wiki says it’s common in hospitals and labs. Interstitial space is not the same as a floor cavity.
Also
So yeah not common in a residential building.