A fellow Bitcoiners once told me that his preference for custodial platforms is as a result of "it's easy access and convenience
It is not difficult to use self custodial wallets or even hardware wallets. Except this person is a trader who needs to store some of their funds on an exchange to trade daily, if not the talk of access and convenience is nonsense. Talking about access, a custodial platform can deny you access to your funds anytime, but in self custody you always have access. So whoever said this bs is misinformed.
At the same time we shouldn't also ignore that self-custody comes with its own challenges, I mean we heard and seen cases where people lose their wallets and their seed phrases.
That is the responsibility of self custody, i don't see it as a challenge but rather a responsibility if you decide to be your own bank and secure your funds yourself, rather than leave that job to custodial services.