Yeah it is true that bounty is not enough for a living. Depending on bounties alone can't give you the right amount of money for you to live in a certain time. Bounties can give you money but not on the time that you need it. Also, bounties takes time to finish which you need to wait and if you don't have alternative source of income, you won't have money on times you are still on bounties. So, we need altenative of source of income don't just depend on bounties alone.