Initially I think due to disruption to banking and government monopolies. Outrageous fees, pitiful interest rates, and financial services only accessible Monday through Friday 9-5 and sometimes on Saturday seem pretty archaic today. People who never had access to a bank can send money to anyone peer-to-peer like cash. Millenials largely prefer to invest their money into cryptocurrencies over traditional assets, which I believe has largely been monopolized by a firmly established few.
Outrageous fees: are you sure we're talking about BitCoin, here?
Financial services M-F 9-5: while you generally need to go into a bank to set up an account, that's not always the case. Afterwards, most banking can be via direct deposit, mobile cameras for check deposits, ATMs, and web services.
People who don't have access to banks -- Kenya appears to have solved this without blockchains.
"Millenials largely prefer to invest their money into cryptocurrencies over traditional assets" -- do you have statistics on this?
I'd personally much rather pay higher fees when there is a high network volume than constantly paying fees for the privilege of using an ATM, or servicing my online account, or processing a wire transfer, or reissuing me a debit card or checkbook, etc. For merchants, fees are outrageous indefinitely.
Here are a few recent articles on millenial interest in crypto [1] [2].
Your personal preferences don't enter into it. The fact of the matter is that bitcoin transaction fees will always be high.
The first of your references is from a cryptocoin hype site, and the second one says that "12%" of millenials would put a substantial amount of a windfall into crypto, which strikes me as not being "largely prefer".
