[mrtksn]

There's other groups of people who have access to money and tech but lack access to banking: persecuted people, financially ruined people or people with irregular documents.

1) persecuted: For example, a religious cult grew to require power in the government in Turkey, clashed with the official government and even tried a military coup and failed. Following the coup, those with direct involvement to the coup went to jail and anyone known to be associated with the cult lost access everything and even their bank accounts were closed(they had a regular Banking institution that was seized) and other banks often refused to open an account for those who were associated with the cult. As a result, they started using money transfer services that are not banks and keep to money in cash.

2) financially ruined: People who screwed up or got unlucky in something and lost everything. Many would work and do business outside of the official channels and as a result they don't want to keep the money in traditional institutions because the money can be blocked or seized due to their financial situation. Also, they won't be able to get any benefit of a bank, so all they need is a way to keep and transfer money.

3) irregulars: Those are usually immigrants who entered a country trough illegal ways or overstayed their visas. In most places, they wont be able to provide the documents to open a bank account or even get a TV subscription but they will be working and making money for many years until they sort out their situation. They will need ways to get payed and pay bills, rent etc.

Therefore, "unbanked" doesn't really mean too poor, many times it means "unserviceable clients". The "decentralised" aspect can actually mean no one is left out since the usreviceability of those people come from the central government in the region.

[zinekeller]

You have good points here, and this reminds me of MasterCard getting giddy with pornographic transactions, even in areas where it is fully legal. However, I think that cryptocurrency will only solve 3) in your list.

For 1), they often seize everything, to the point that they seize computers and phones. Even if they are smart to have a backup, I'm pretty sure that they will try to hoover up anything and everything, even regular currency.

For 2), I think that this is a societal problem, really. In France (as an example), you are entitled to a bank account regardless of your status, that even means if you have been convicted of money laundering. On the flipside, and I am assuming to use cryptocurrencies like Monero which makes transaction tracking harder, if you are really wanted you could end up in situation that I described on 1).