Is it better to leave our money in a large regulated institution, where there are rules and, if there is a problem, you can go to court?
No, at least I am not going to store my Bitcoin and other crypto in any regulated institution. The reason they are custodial and may seize my funds anytime for any reason.
Self-custody gives the user direct control over their Bitcoin, but it also puts all the responsibility on them.
Definitely, we have to secure our funds in our own bank. Because only you have access to your wallet, which is called your own bank. So you have to take that responsibility.
Some people may have difficulties dealing with this. A seed phrase kept in an unsafe place, a compromised computer or phone, a lost backup, or simply a security mistake can be enough to lose all your Bitcoin forever.
Older people, who have difficulties with technology, may have more problems with the wallet and security.
And for someone who has a large amount of Bitcoin, does it really make sense to put everything in self-custody?
That’s why it’s very important to learn at least basic things about Bitcoin and wallet systems. Unless you know it, then probably you still aren’t suitable to purchase and store Bitcoin. Of course, it does make sense to secure your funds in your self-custody. It’s not very difficult at all; it's just a matter of learning.