en_GB vs en_US is largely a locale choice. Many developers in EU choose en_IE to have English translations, €, Monday 1st day of the week and comma as fractiona

en_GB vs en_US is largely a locale choice. Many developers in EU choose en_IE to have English translations, €, Monday 1st day of the week and comma as fractional separator. Ukrainian vs Russian is a cultural choice. I sm sure that 80/20 ratio is old news by now, anyway.