Not all investors understand how when they store their assets in CEX they can be exposed to the risk that their assets could be lost if the CEX goes bankrupt. Storing bitcoin in a non-custodial wallet is the safest and most secure thing that investors can do, because their assets are in their hands and they can manage it whenever they want without having to worry that the assets will be taken by other parties. And for fees, the way you do it can be done by beginners to minimize the fees they need to pay to move their bitcoins from CEX.

Maybe the extra security that investors need to do is they need to secure their devices and separate their daily devices and devices for their bitcoin wallets. Or more securely using a hardware wallet, but that might be more expensive for beginners. But the most important thing is that investors need to understand the security of their devices, so that their wallets can be kept safe.