The majority of people are on digital products, phones, tablets, tv and movies etc. Unfortunately, PS and Nintendo and Xbox are some of the last mediums who use physical.
All those plus PC gaming have an alternative for digital media ownership and preservation, at the very least in the form of piracy. The consoles don't have that alternative.
If you're a naughty boy in a gamechat of Helldivers, you can lose access to your complete library of digital games. And as the EULA states, Sony can at any time for a bunch of vague reasons take away your ability to access your previously
purchased games on PSN.
Also, the PC allows for several different digital distributors to sell you games, and for some games there are even DRM-less alternatives. On Playstation you get one store and that's it. Sony has an absolute monopoly on digital distribution for the Playstation.
It could be that the Epic vs. Apple trial establishes precedence for Sony to be forced to open their store to other distributors, but so far there's no sign of that yet.
With an optional disc as the majority of their customers buy digital.
82% of their customers bought the disc version, so the majority of their customers buy the disc version.
The mistake you're making here is you're not calculating the statistics. You're saying if for one game the majority of sales are digital, then the majority of people with a PS5
only buy digital, and this is not true.
If a person buys a disc PS5 and then buys 7 digital games + 3 physical games, then they bought discs. And they'll obviously want a mid-gen console upgrade that plays the games they already bought.
Even if any person with a disc PS5 has 80% chances of buying any of their games in digital form, after buying 10 games that person had (0.8)^10 chances of never buying a physical game, That's below 11% chances of never buying a physical game. So in that case, 9 out of 10 people will have bought at least one physical disc.