You have to do 1 or 2 years of school (Fachoberschule) first. My friend did this, but it's a path that not many people will choose, because it's hard to go back

You have to do 1 or 2 years of school (Fachoberschule) first. My friend did this, but it's a path that not many people will choose, because it's hard to go back to school for such a long time after you started to earn money.