His main concerns:
If he uses a KYC exchange, even for small amounts, could authorities link his wallet to him?
Could banks or tax offices freeze his account or ask for explanations if more money starts showing up?
Would this be counted as "assets" and disqualify him from his student support?
His parents can't act as proxies, as they also have low income and don’t want to risk anything.
Different countries, different regulations, I don't know how far that goes. But if your friend just wants to avoid being tracked on his behalf, shouldn't that be possible by using your identity to register an account on a legal CEX there, then liquidating directly through your bank account?
@cygan, @d5000 & @1miau coming from Germany, maybe they can give better directions, sorry for mentioning you guys.