I believe that the emergence of a crypto bank is a very real possibility and most likely it will be realized in the near future. Why? Well, strictly speaking, it is unlikely that someone from the powers that be would have allowed to have non-regulated assets, well, this simply cannot be. In other matters, everything that happened a few years ago and now it is pulling more and more people into the crypto sphere, and in order to increase this flow, you need to bring cryptocurrencies to a higher level, namely, give them free use and offer to store it in a centralized bank. All this looks like a kind of plan that is being realized before our eyes right now. So most likely it's time to take off the pink glasses and think about what to do when the crypto jars appear.
One thing for sure, is that crypto and Blockchain tech has attracted the likes of governments and central banks worldwide. Their huge interest in these emergent technologies, might lead them to devise their own financial solutions that are frictionless, and cheaper to operate than the existent financial system of today. No one knows what will happen in the future as the crypto industry is completely unpredictable. Rest assured that if a crypto bank becomes a reality in the future, it'll become subject to the same regulations as the traditional banks of today. Newcomers into crypto will find it much easier to store their money in a crypto bank, than doing so themselves. After all, the responsibility of securing crypto funds is passed to the "Bank" (middleman) instead of the end user. For us, crypto veterans, it's best to be our own bank in every way possible. Using existing wallet solutions like Hardware wallets and Paper wallets, you can secure your crypto funds against malicious actors in cyberspace.
Time will tell us, if we ever get to see a "Bank of Crypto" operate within the mainstream world. If that never comes true, there's no need for newcomers to worry about securing their crypto funds, and requesting banking services as the world of "Decentralized Finance" (DeFi) is growing right before our very eyes. Ethereum and other smart-contract-based cryptocurrencies provide many decentralized services (like lending and borrowing) that are common within banks of today. Crypto bank or not, the entire crypto industry will continue to grow in popularity for years to come. Just my thoughts