A fellow Bitcoiners once told me that his preference for custodial platforms is as a result of "it's easy access and convenience and even claimed that it had a stronger security measures." But most of what he said don't really add up if we take a look at the collapse of FTX in 2022.
Some people just don't really care enough about self custody until shit hits the fan and they can't access their money anymore. I've seen countless people who got their money frozen by the exchange and can't access it for few years until the value plummets.
Too much that kind of story floating around the twitter and other forums.
They will only care about self custody when they see the benefit in it which they haven't realized yet.
The easy of access will become over complicated years long bureaucracy when the exchange collapses.