Easier for me to be bankless as an american abroad than to try bother to jump through all the hoops and getting a "real" bank account.
At some point you need a long-term visa, which means you need a job, and that job will require you to have a (local) bank account.
Need to pay bills? You can't pay in cryptocurrency, and they expect local currency. Some may accept credit cards, but most will probably only accept debit or bank transfer. Ones that accept credit cards may only accept national cards.
If you're a US citizen and you have a bank account in the US (or credit cards), and they find out you're no longer residing in the US, they'll probably close your accounts to avoid dealing with FACTA. You'll need to setup special bank accounts, and may also need to switch your brokerage accounts.
At some point credit card companies will realize you're living somewhere else and will close your accounts, because they're intended to be used on vacation in other countries, but not long-term.
To use crypto, you need to convert it into fiat, and you can't do that without a bank account.
I don't use credit cards and never had. When I need fiat, I swap with "friends" locally who want crypto or who do have accounts (they "shill" crypto brokerages on television stations shows [and their ads on other show slots] in the country i'm in and there are more local users of crypto than people who actually have regular brokerage accounts to trade local stocks in the country). And there are local websites where I can actually pay for bills with crypto but I see no real need to when its relatively easy for me to get cash (cash top ups for alot of apps that can be used to pay for lots of things from bills, goods/services and food). Any brokerage accounts I've had (IB and robinhood), I've long drained the funds/liquidated assets and these days I'm really only exposed to what I can trade on a dex.
Other foreigners I've talked usually jump through some hoops to have a local "agent" to set up accounts for them that they have control over, but i cannot be bothered. Less exposure to bailoutistan, the better.
To use crypto, you need to find someone else who will swap for it, and over the past 10 years, that has increased enough for me to be ok with the work arounds. May not be ok for the way you want to live your life, but it works for me.
One day i'll be "stateless", but a lot more work to happen on that front with many others for that to come into fruition… ;)