The risk of self-regulating Bitcoin is that it can be stolen by hackers or have security flaws. Banks have collapsed one after another. In addition to the above two methods, you can move your money to a physical form which is gold. Because no one taxes your gold when you own them. If you choose real estate you will probably lose your tax dollars yearly on them. Splitting money into different parts to balance risks is also a good way.
I don't think Bitcoin have security flaws. It wasn't like any other tokens and altcoins out there who are poorly coded. Security flaws might only happen on the Bitcoin wallet that we are using. Hacks are possible but only if you are too careless and lacks knowledge on how to keep your Bitcoins secure.
This doesn't sound worse as keeping money in the banks. No matter how secure a bank is, there are still other problems which can occur to them and that will be the cause of their collapse. That will also be the time you will lose your money. Gold is just like Bitcoin which was also an asset but I think it's more on the government side you may still be taxed with it. It's also a bit hassle to buy and keep them because they are physical items.