Why is ETH so expensive to send?

Could you please explain to me why sending ETH is so costly? I've noticed that the transaction fees are significantly higher compared to other cryptocurrencies. Is it due to the complexity of the Ethereum network? Or is it because of the high demand for ETH transactions? Additionally, how does the gas price affect the overall cost of sending ETH? I'm trying to understand the factors that contribute to this high cost so that I can make informed decisions when it comes to crypto transactions. Thank you for your assistance.