The rest of the world would like a word. Do you really think only you people in the US exist?

Also the equivalent for psi is Pa (=N/m²), usually as kPa or bar (100 kPa).

Most people don't really understand either to a great extent, and are just familiar with one or the other.

As always though, metric wins because of its interoperability with all the other metric units.

"Most people", no, the earth isn't mostly Americans. It's only Americans that do this dumb as fuck things where they forget the rest of the world and think only they exist or matter. You have no idea how fucking annoying it is, and how much it shows stupidity and ignorance.