SSH: troubles with setting the locale on the Raspberry Pi

I had troubles when making my first steps with the Raspberry Pi – I always got the message „Setting locale failed“ when setting up the Pi via SSH. If you’re facing troubles with setting the correct locale using a Mac to connect to the Pi through SSH, you may find the following helpful:
After searching for a while and trying stuff like modifying „ssh_config“ without any success, I found the solution was quite simple: In the settings of Mac Terminal just uncheck the option „Set locale environment variables on startup“ in the Advanced section: