you can earn bitcoin thru signature campaign but the status of your rank it would be difficult since signature camapigns accept member+ rank and above. You can also try faucets but it takes time to gather some sathoshi on it. Its not worth it on the effort. If you have money to buy bitcoin then buy and invest some of it to gain profit.
He is already a member, I think it's fine time for him to join a signature campaign. But I suggest that he also try those data entry jobs, it would be a bit easier for him and there is not much pressure on that job.. faucets are good too, if he needs something to start with to get a capital and then try trading and make money from it.
