Sony doesn't DRM the power that you use to run the Playstation either. But to try and meet the comparison: there are different manufacturers of fuel just like there are different publishers of games and while Volkswagen can't force you to not put standard fuel in your car they can certainly void your warranty if you don't use premium (and fuel is still tested and regulated for industry compliance).
I'm getting a tad lost, though. The point of the sub-thread is that Sony does not have a monopoly over the video game industry. They get to choose which games are allowed on their platform and under what terms. Consoles and Cars both have proprietary components and open interfaces. A console and car have different purposes. And the average consumer has broad discretion to use cars and consoles from whatever manufacturer they wish to.
I'm getting a tad lost, though. The point of the sub-thread is that Sony does not have a monopoly over the video game industry. They get to choose which games are allowed on their platform and under what terms. Consoles and Cars both have proprietary components and open interfaces. A console and car have different purposes. And the average consumer has broad discretion to use cars and consoles from whatever manufacturer they wish to.