Well those locale things are always mysterious to me.
Some stuff on the internet points to running export LC_ALL=en_US.UTF-8 in your terminal, then these should work.
If you want this to be done automatically, you can add this line at the end of your .bashrc file in your user (so e.g. if you’re connected with admin, edit the file with nano /home/admin/.bashrc, add the line at the end of the file, then save/close with Ctrl+X)