While it is true all information is available, it is not feasible for a person to educate themselves on all aspects of life to the point that would, in case of OSes, make them see Linux as an alternative and render them able to operate Linux without any issues.

We know the value of this knowledge, and we focused on that front. Someone else is great at stitching and can create great sustainable clothes, avoiding the trap modern industry gets us into. Someone else is a hacky mechanic, and can fix even modern cars themselves, and knows which ones to avoid etc. etc.

Are we to blame for not knowing everything?

We have to come from the current situation, and, as things stand, most people are not aware of Linux as real desktop alternative as opposed to "hacky server thingy". Heck, for many Windows is the way PC's work, a weird magical word to describe whatever computer software they see. That's just the mainstream narrative, one we heavily rely on in other ways.

That's not taking into account professional software and other factors holding people on Windows. A lot of it doesn't run well in the VM (even QEMU with passthrough), and dualboot is not the most comfortable way to manage different requirements.