I worry about that too, but mostly from the censorship angle. Every day people are finding new things to be offended about, so it's only a matter of time before something in ALL of my favorite movies offends someone and they need to censor it.
But it's silly to "worry" about something I have so little control over. Eventually, my DVD and bluray players won't work and there's nothing I can do about it. Better just enjoy them now while I can.
Yes, it's easy to censor something more completely when access to the media itself is controlled, and never actually in your own hands. Much more relevant to new material at the moment that doesn't see physical release; and relevant for the time when physical media can't be played.
My old PC had been gradually playing up. First the DVD drive stopped working, then came back from the dead but not fully operational. Then the PC would freeze at odd times, and need rebooting. Sometimes the power button was even inoperable during these lockups. One of the last times it did it the LED ring around the power button was red (instead of white) - never seen that before! It would reboot fine as if nothing was wrong. It wasn't reliable, so Tuesday evening I searched for a replacement, and remarkably it arrived the next morning.
It's a brand new PC running Windows 11, after installing the update yesterday. Yet it's quite old school. It still has a DVD drive, and the keyboard and mouse are USB wired, as opposed to the wireless ones that came with my old PC, and went through batteries fast. It's as though there are still diehards out there, catering to like minded people like myself.
So, in the house there's two Blu-ray players, two DVD players, plus the cheap portable DVD player I bought when the PC one failed. That's a least a little future proofing for some of the disc collection.
Lots of things seem to be becoming ephemeral, or non-physical. There's things you don't possess, but access remotely as with movies online, or documents and files in clouds. Sometimes rather than walk fifty feet to look at one of my figures to check something I'll search for a photo of it likely stored thousands of miles away in my Flickr account instead.
I still wonder, whether the love for Blu-rays and DVDs could be as wide, or even wider than, vinyl.