We can only suggest him finishing his study and start Bitcoin. But if his parents give him the money for monthly, he can start into Bitcoin investment. I heard some students can get a part time job that can give him some money. If he have that two things, having money for monthly from his parents and his salary from his part time job, it will be better for him because he can start Bitcoin investment.
That will take many years before it happen and try to see what he provably missed if he didn't do something at early as this.
So I guess what's better option he could take is to use only the extra funds he get after he take all of those things need to pay. Since somehow accumulating Bitcoin coming from extra funds he got is still the best thing he could do. He could just think about that this is his savings then provably everything will work good after he graduates and find high paying job which provably could make everything good on his side especially on his Bitcoin investment.
Uum..that is what he needs to do if he doesn't have money to start. People can't expect from faucets like a few years ago. That's not worth to do but they can start investing in Bitcoin when they have money.
If he has extra funds, that will help him to start but if not, it will be difficult. But if he wants to use other people money, that will not be a good idea because he needs to give back the money. Unless that money is from his parents, he is free doing that and that depend on his negotiation with his parents. So he needs to think what he will do to start his Bitcoin investment.