If you are planning on moving to Germany or need to relocate for an extended period of time, it's important that you learn to how to speak German
This isn't mandatory of course but a few important thing will happen if you learn the German language...
1) You will be able to effectively communicate and get your message across to people without much hassle or looking for an interpreter. Fighting to get your message across can be such a stressful and time consuming task if you don't know any of the local language.
2) You will expand the amount of joy and fun you have on your trip because you will be able to take part of the culture. Blending in and taking part in the culture of the place that you are visiting is much easier if you at least know enough of the language to ask basic questions and understand basic commands.
It's proven that you will have more fun, have a better memory of your tip and gain more in terms of being cultured if you learn how to speak German when going to a German speaking country.
I mention Germany in this article but you may be going to another country that speak German so this could be applicable to you as well.
Think about this the next time you are planning an extended stay or move to a German speaking country!
Learning how to speak German will make for a much better trip for you and your travel partners.