In the case of a correction your cases 1 and 2 could end up very poorly off indeed.
BTC as a store of value has some brittle pieces. I'm not as confident in the current direction.
These developments could make Bitcoin (mostly) unusable and thus worthless. Would you still buy more?
Why would a person with low wealth invest their life savings into a highly volatile, recently developed instrument, when they can just buy jewelry, gold, etc
For the latter use case fewer objections readily come to mind, but this supports the reputation as a tool for those who are barred from capital markets due to illegal activity (whether real or politically contrived illegal activity)
Consumer applications (like Coinbase) will emerge to support the local population who can use it via smartphone and not need to understand public/private key encryption etc.
how would you get a meaningful number of people who have never used the Internet
They use the Internet; they just call it by a different name: Whatsapp, Facebook, Instagram...
Why would a person with low wealth invest their life savings into a highly volatile, recently developed instrument, when they can just buy jewelry, gold, etc
Gold, jewelry, etc can be stolen or lost.
All of finance is built on trust. Trust in enforcement of securities and property laws, trust that banks or debtors won't disappear overnight, trust that counterparties will not disappear, trust that someone won't lie to you and take your money, and trust that, when the above inevitably happen, there exists a set of institutions that can protect you
You may trust blockchain more than a bank, but you are the minority by a massive massive margin. The reality is that banks, while not perfect, are accountable. They are run by people whose jobs depend on them not totally screwing up. And despite the bad / shady things that banks do, overall they do a pretty good job at maintaining a stable financial system
With bitcoin and other decentralized systems, there is no accountability. You must rely on the perfection of the technology. It will break, and when it does, there is no legal system to protect you and no bank that will reimburse you for fraudulent charges
You may not care about this, but 99% of the world does
There is already a lack of legal systems and order. You have ISIS roaming around cutting people's heads off.
Obviously you have a different set of priorities when you're running for your life.
At least jewelry and watches are a relatively stable store of wealth.
There's a 'no one knows' stigma hanging around the cryptocurrencies. It's risky enough risking an escape from Syria, without adding a risk that traders are going to suddenly sell en-masse before you withdraw the funds.
I mean a transaction today can cost $3-4 USD. With valuation rising, and the network automatically paying out less per block, we could soon see a flooded network that is asking for $10-15 for a transaction. Is this an impediment from it becoming a large scale value store?
The world needs a censorship-resistant digital vault to store wealth. Bitcoin is basically a very cheap "Swiss bank account as a service" for the world's unbanked.
Some use cases I can think off the top of my head:
(1) You are from Syria and need to flee war and escape into Europe – however bank transfers into Europe are almost impossible if you are a common Syrian. Bitcoin allows you to take your wealth with you, in your brain, as you escape across the border, by just memorising your twelve word private key.
(2) You are from Venezuela or Zimbabwe – The government has issued capital controls and is devaluing currency by the day. You transfer your wealth into Bitcoin in order to offset capital erosion due to hyper-inflation. When the situation stabilises, you transfer your Bitcoin back into fiat.
(3) You are Saudi billionaire Al-Waleed bin Talal. The government freezes all your assets in a political coup. If you have a portion of your wealth in Bitcoin, you could protect them from government expropriation and anonymously transfer them to associates or family members abroad.
I truly believe that Bitcoin will serve the unbanked of the world. We're not there yet, but these are very early days for crypto.
Sorry for the long winded response, I get excited when talking about BTC.