Celebrating your birthday is a big thing. For every decade and milestone, you have to celebrate it with all of your family and friends. Every birthday is a highlight in your life but your 18th birthday is the most important one. The celebration may vary between countries. Today, we’ll talk to Josi, a 21-year-old German student, to find out how Germans mark their 18th birthday.  An 18th birthday in Germany is full of beer, special gifts, Kartoffel salad, and Schlager (Photo: cosmopolitan.com)