I don't think it's a good idea to put savings in a private bank during a financial crisis. Instead, you should choose a government bank because if they go bankrupt, you will still be supported by the state. But if you want to invest in Bitcoin, ensuring proper storage and security is important. Using a hardware wallet from a reputable website is indeed a recommended method for long-term storage of cryptocurrencies. Remember to keep multiple backups of your wallet's recovery phrase or seed and store them in separate secure locations.
Not using any banks is the best advise, if you feel Bitcoin is very volatile and unpredictable for it to be use as an investment for the future of your children then try investing in more stable forms of investment like Real estate that'll be profitable even in the future. Real estate will always be of value because individual will always need house to live in and you could be getting a good deals now for the future.
Bitcoin is perfect as you can do everything from your house without having to meet any agents like when investing in Real estate. Investing in Bitcoin is a good choice but don't just invest and forget, stay updated with your investment because wallets are getting hacked lately.
