Thanks for your report. It's worth looking into, but it won't be fixed for Ubuntu 18.04.
However, as regards *language* there are no translations available for neither the Kenyan flavor of English nor Swahili, so the most reasonable choice is probably English (UK) which is selectable by default.
As regards *formats*, i.e. the setting for date and number formats, currency etc., you can generate the sw_KE locale with this command:
sudo locale-gen sw_KE
That will make Kenya selectable under Formats at next login.
Thanks for your report. It's worth looking into, but it won't be fixed for Ubuntu 18.04.
However, as regards *language* there are no translations available for neither the Kenyan flavor of English nor Swahili, so the most reasonable choice is probably English (UK) which is selectable by default.
As regards *formats*, i.e. the setting for date and number formats, currency etc., you can generate the sw_KE locale with this command:
sudo locale-gen sw_KE
That will make Kenya selectable under Formats at next login.