Comment 0 for bug 1907914

When installing ubuntu (20.04 and later (earlier also probably))selecting
- english (US) language
- Brussels-Belgian timezone

ubuntu selects de_BE as locale which is teh Belgian German-language locale

in Belgium about 60% are dutch-speaking (nl_BE) and 40% are french speaking (fr_BE) and less than 1% are german speaking (de_BE)--> choosing de_BE seems to be a bad default value

related ubiquity code is here : https://git.launchpad.net/ubiquity/tree/scripts/localechooser-apply

it seems when a language (en) is selected for Belgium which is not available as a locale (i.e. en-BE) the locale de_BE is chosen using this code

-- code --
  combined="$(grep ' UTF-8' /usr/share/i18n/SUPPORTED | \
   grep "${deflang}_$COUNTRY[.@ ]" | head -n1 | \
   cut -d' ' -f1)"
-- code --

de_BE is chosen as I suppose it is alphabetically before fr_BE and nl_BE

I'm not sure what the best solution is

I'd propose the following changes in order of my preference
1. add a en_BE locale (https://www.localeplanet.com/icu/en-BE/index.html) and make that default for non wa, nl, fr and de languages
2. allow user to select nl_BE or fr_BE locale when installing ubuntu (and maybe also de_BE or wa_BE which have much smaller % of people in Belgium) - may require a change of ubuntu install process - but I guess Belgium is not the only country with several languages with similar issues : Switzerland, ...
3. set default language nl for Belgium (might be politically problematic for 40% of Belgian people) but makes more sense than de

related AskUbuntu question : https://askubuntu.com/questions/1299522/belgian-formats-when-choosing-us-language-regional-language-settings-issue