Today, beginners learn a word: gas fee. It isn’t a random platform charge or a service fee; it’s the money you pay for computing and storage resources on the blockchain. When the network is more congested, the cost is usually higher; the more complex the operation, the more it consumes. Before making a transfer, be sure to check the network and the estimated fee—don’t end up paying a more expensive gas fee just to transfer a small amount of money.