No Free Lunch - Comparing Crypto Transaction Fee Models

Why do some cryptocurrencies charge users high transaction fees to use the blockchain while other cryptocurrencies are "gas-free cryptocurrencies" that don't charge fees for each transaction? Are some cryptocurrencies greedier than others, or could there be a legitimate reason for transaction fees? Join me in today's video as we discuss why transaction fees are necessary and compare and contrast the ways that transaction fees are implemented differently across blockchains. #crypto #btc #waxp