[chrisjc]

I don't think anyone is expecting google to patch every phone on the planet (assuming you mean every android device ever released). But they should be able to patch every phone of theirs including every old pixel and nexus.

And if they can't, they should make it clear to the user/owner that their phone isn't supported and that means that their lives or the lives of others could be in jeopardy as a result. In fact, perhaps their phones should have an expiration date and should just stop working after sometime. Or at least disable critical functionality that their required to be in compliance with (FCC regulations) since they've decided to no longer support the device. Moreover, this date and timeline should be clear from the point in time when you purchase the device.

Of course this could all be done by the network providers only allowing supported devices on their network, but we all know how that would end up.

This isn't just some bug, and if google wants to participate and be taken seriously in this industry, they should stand by their products and customers.