Thanks for the clarification, I'll add that I probably didn't express my opinion accurately if you thought that I expected you to “solve all problems”
Yes, English is not my native language, you can expect inaccuracies.
Let me start with the last sentences: the financial system is one of the main pillars of the economy. It's silly to deny it. But there is a nuance... the financial system is very much related to such a concept as POWER. And here we face the first problem - a decentralized, not controlled “out of my hands” system is not needed by the POWER. Otherwise, it, the power, will lose one of the key mechanisms of governance.
1. Bitcoin as a means of saving is a good idea, but.... it is more or less workable if there are guarantees of bitcoin growth, and the HOLDER'S POSSIBILITY to hold it without selling it for 2-3-5 years. Hint - poor people can't do it....
2. Decentralization is good, but also... bad - any mistake in the address - and bitcoin is irretrievably lost. Or if a person can't ensure quality storage of a passphrase, password - his bitcoins will DEFINITELY be stolen.... Decentralization has disadvantages in addition to advantages, this is also a fact
3. Yes, decentralization is good, but... Legislative norms and mechanisms of influence can easily make your bitcoins (your wallet) illiquid by putting it on a blacklist for exchanges, stores,...
4.Regarding the protection against inflation - also a controversial issue, because it can give a positive result only in the long term, which, for example, the poor are not ready for.....
All you've said is just as accurate as said, I'd be damned if I said decentralization doesn't have its prons and cons, just like every other things, decentralization has its disadvantages and flaws but compared to native fiat currency/banking systems, you'll need to consider which option is a lot more preferable or convenient.
To buttress your 1st point, while you're right that there's no guarantee for Bitcoin growth, and yes past events are not a guarantee for future performance but then again, if you think about it very well, you'll be able to notice that Bitcoin has proven beyond doubt to be the best digital asset when it comes of having potential for future growth and maintaining its reputation in the long run.
Thousands/millions of people around the globe are actively participating and HODLing Bitcoin, I'm pretty sure if they're not sure and positive about tye authenticity of Bitcoin, the population wouldn't be that much.
Concerning the HOLDER's possibility to HODL for that long, before a person decides to store his value or his money, he should already be aware that savings are meant to be for the long-term, except of course they plan to save for a short-term goal, then they can sort for other means to save.
Sure, the poor may not be able to do it, but then again, how many poor people has the ability to purchase gold and save their money there? It's also almost impossible for the poor to do so too right?
Yes, any mistakes in the address, one's Bitcoin is irretrievably lost hence the reason why people needs to double check the address or any of the recipient's details before initiating any transactions, which is the normal thing to do when making transactions.
Concerning one's wallet being compromised due to their inability to secure their passphrases or any other confidential information, people should always be aware that information such as those are quite delicate and should be protected, it's just like accidentally giving out your credit card or debit card details to someone else and then got scammed... Whether with bitcoin or traditional banking systems, there's always need to be cautious and protective of your personal information and avoid them getting into the wrong hands.
You need to realize that the Blockchain technology and Bitcoin is relatively a new technology and currency, and has the possibility to make changes and has room for further developments and innovations.