We have diverse view on the validity of airdrop. I personally believe that airdrop is a good start for someone coming into the cryptocurrency space. It gives one the opportunity to learn from the scratch and experience the effort it takes to earn from this space. It may serve as a deterrent for greed as the cryptocurrency space is not a get rich quick scheme.
Of course, there is a possibility that you will be paid for participating in airdrop, but in any case, you will have to wait a very long time for payment. Therefore, if you decide to start your business in the cryptocurrency market in this way, it will take a very long time to get the start-up capital and start trading.