There are still cryptocurrencies with that - Nano, Iota, EOS, Stellar all have basically negligible transaction fees, and even Ethereum isn't that expensive. T

There are still cryptocurrencies with that - Nano, Iota, EOS, Stellar all have basically negligible transaction fees, and even Ethereum isn't that expensive. That Nano hasn't really caught on is an indication that the barrier to mass adoption of cryptocurrencies lies somewhere other than transaction fees.