You can not count on crypto as a source of permanent and stable income. This applies to any sphere in crypto: airdrop, bounty, trade, exchanges. In either of these items, you may fail or have to wait too long for a well deserved reward. Some coins received as reward for the performance of tasks, may not soon appear on the exchange or do not appear at all.
yes, if you are someone who does not have a job then the crypto world is worthy of your study. but in some time you might become depressed because if you rely on bounty, airdrop etc. it is not an instant way to succeed.