That's kind of tough for him if that's what he'll get even with small amounts. I am not oriented with such policies there but if that's how strict they are, he needs to be careful or else he'd say goodbye to that program and benefits. How about going to the next country that's just beside Germany and he'd do the transaction there. Will there be concerns about him getting some cash there or withdrawing it from another bank outside?
Think about this. A client's account constantly (weekly or monthly) receives money in small amounts (what consider small when you want to liquidate a mid five number?) from an exchanger account (best case since any other incoming tx from different sources can be more "attractive" for the bank to start searching and asking for details faster). So, the easiest (and simplest) thing for the bank is to ask the source of those incoming funds. How will you justify them? You are in a student government program/ loan, and they know it. They will ask you for paperwork proofs, and until you deliver them, your account will be frozen. Not to mention that the bank will inform the tax authorities etc etc.
I'm not saying that it can't be done, but you need a strict plan, with specific amounts, dates that will look random (but won't be), etc. details.
As for going to another country, you will need to open a bank account there as well, right? Don't forget that we are talking about a 19-year-old person going from Germany to open an account in Switzerland or Austria, or any other country. The first question that everybody will ask him is why he went there to open a bank account and not in his country. Bad and strange from the start... The "best" way in these kinds of situations is cash on hand, and far better if you find someone in your country. But then comes the issue of knowing that person and how safe it can be to make a transaction of 50k+ with a random person...
