The disc reader on consoles is optional these days. Nowadays many are opting for digital only variants. It's likely those will be the only option in ~10 years, or they'll switch to flash key cards (like the Switch) just to appease retailers.
>>The disc reader on consoles is optional these days
You can't buy an Xbox Series X without a BD drive. PS5 exists in both variants, but it's not like you can only buy a disc less PS5 and then you have to buy a drive extra.
On one hand, yes, it's dying. On the other, a PS5 can play DVDs, so there's one class of popular, modern hardware where it's alive and well.