Jobless as well, fortunately some bitcoins are on the way 
True , by now i am really planning to help other persons especially for those who are illiterate persons like my brother but knows how to used computer so basically captcha solving would really help them.
I don't really think that would be the best way, there must be some better way for him to help out. Capthas are really low paying, it's not profitable at all.
Earning from captcha is the waste of time and the payouts are very low, and there are many scammers who will not pay you at the end of the work, and in that case signature campaign is good to earn descent amount of coins.