Good in spirit, but I don't really see how you'd get a government to care unless the company is dumb and makes a false advertisement ("we guarantee 10 years of service!" cancelled after 6 months). It'd be hard to enforce a company to make them keep a service they don't want to maintain up.
And then there are simply some borderline content that isn't technically out of service. e.g. You may have bought a digital version of Final Fantasy VII on the PS3 (and PSP/PSV), but it didn't entitle the user to own the PS4, nor PS5 version of FF7 (Which IIRC, each are separate releases you need to pay for). It's sucky, but your PS3 version is still downloadable, and playable on those older platforms. And based on history, it should still be downloadable for an extended period even when the PS3 store shuts down.
And then there are simply some borderline content that isn't technically out of service. e.g. You may have bought a digital version of Final Fantasy VII on the PS3 (and PSP/PSV), but it didn't entitle the user to own the PS4, nor PS5 version of FF7 (Which IIRC, each are separate releases you need to pay for). It's sucky, but your PS3 version is still downloadable, and playable on those older platforms. And based on history, it should still be downloadable for an extended period even when the PS3 store shuts down.