Here is a bulleted list of my specific questions in case you want to save time not reading what gave rise to them:
Do German people use cursive writing often? Is it necessary for me to learn how to read & write cursive?
If so, which style should I choose? (I intend to go to Berlin in the near future.)
How do German folks hand-write numerals (0-9)?
I was hand-filling out a form in German just now, and I realized immediately that I could not decide how I should properly put words and numbers down. I vaguely recall how my German instructor back in college would write certain alphabets and numbers differently on the chalkboard--namely the capital "I", capital "G", sieben (as in "7" but with a sort of a slanted slash in the lower middle), and perhaps "null" and "neun".
Regarding the alphabet, I tried to look for related resources, but there was such a mixed result on Google that I really could not tell which one was more reliable. Now I did read on a page somewhere which said something to the effect that nowadays three types of cursive styles are taught respectively in schools in Germany: excluding the somewhat controversial Grundschrift and the outdated Sütterlinschrift.
In that case, which one should I learn? Does it depend on which state in Germany I will go to in the future? Or perhaps I should ask this: Is it imperative for me to learn any German cursive in order to have less of a hard time getting around in Germany? How often do the German write in cursive?
In terms of number-writing, how do German people write Arabic numerals? I kind of know for sure that "sieben" is handwritten differently from the American style which I believe I was taught, but how about the rest of them?