Closing the online store for older systems simultaneously with announcing the dropping of physical media leaves an interesting question for the future. Even if you’ve never bought an online PS3 or Vita game, you’ll still be able to use the systems for physical games. Presumably once the PS6 store is gone, any console is just an ornament if you don’t have access to an account with games already purchased (and how long will the download servers stay up anyway? What is the foreseeable future?).
The assumption is that it'll be jailbroken well before they shut down the store.
I was having this discussion with my 9 year old yesterday. He mentioned that a friend had Rocket League on their Switch 2 and "it didn't even need a game card". I told him that anything without a physical card can be taken away, the company that made it can decide to take it back or to stop letting it work. Compared that to my old DS which he found along with game cards for Lego Star Wars and Scribblenauts that still work ~20 years later.
I think he "got" it. He was certainly annoyed at the idea that something purchased could just be taken back. Maybe it'll stick and he'll be better able to understand why I'll push back on a new PlayStation or any digital only games.