Gas fees, the transaction costs on blockchain networks like Ethereum, significantly impact cryptocurrency users. They compensate validators for processing transactions, but high fees during network congestion can make small transactions or frequent trades costly, deterring casual users and small investors. For example, complex operations like smart contracts demand more gas, spiking expenses. Low fees, like Ethereum’s recent $0.04 average, improve accessibility but may signal reduced network activity. Scalability solutions, such as Layer 2 networks, aim to lower costs, while high fees can delay transactions, affecting DeFi and NFT usability. Ultimately, gas fees shape user experience and adoption.