While we can easily hold our bitcoin in a decentralized wallets where only you have access to the private keys to the wsllet that make you the sole controller pf the funds in it all that you need to do is to securely protect your wallet keys from third-party access.
(It has many advantages and disadvantages, but advantages superceeds the disadvantages). Putting the disadvantages into consideration and as a person that want to lower their risk of loss, will bitcoin be suitable as a source of income (not fully, like a part-time job), or should we invest fully in them and wait for a large profit since many users here in the forum foresee it that, at halving the price always go up above the current All time high.