It may be outside of the usage patterns of the average user today, but the existence of data caps may also be the whole reason that the average user isn't already using a lot more bandwidth. Service providers are held back by their users' data caps, preventing the "cloud revolution" to really take off.
Gaming from cloud gaming services at good quality is about 16 GB per hour. That's 2.5 hours of gaming per day to reach 1.2 TB just gaming. Combine gaming with some Netflix, Youtube, PornHub and cloud backups and you quickly reach 1.2 TB. Nowadays it's even common to watch old school TV channels over the internet instead of using the antenna or cable. You often even get better quality. Cast CNN/FoxNews/whatever to your Chromecast or AppleTV and keep it running in the background from early morning to late evening. I can easily imagine my non-technical parents doing that, every day.
Also, I recently reinstalled my computer and Dropbox downloaded some 600 GB worth of mobile camera pictures and videos in the background, just like that. I don't even take that many pictures, it just builds up over the years. I can easily imagine non-nerds using up multiple terabytes on cloud storage services for their mobile camera selfies and travel/party pictures/videos alone.
It's not just marketing, it's also UX. On general purpose computers, nobody comes close to Apple's whole-package UX for the vast majority of people. Granted, macOS lacks (or overly complicate) many things that may be important for some categories of power users and especially tinkerers, but Windows is not close to the level of consistency and frictionlessness of macOS for 95% of the end users, and Linux is not even playing the same game. ChromeOS does match and even surpass macOS in UX but I don't consider it general purpose enough to put it in the same category.
I must add, though, that many of the problems with Windows these days are not even Microsoft's fault. It's a combination of legacy software and culture developed over decades. Somehow, Windows software companies still think it's fine to have applications popup "a new version found, do you want to upgrade?" dialogs at boot, and then requiring "next, next, EULA, scroll. I agree, next, next, finish" to upgrade the already installed application from v2.12 to v2.13. Then you have the computer or motherboard maker's support software with knobs and buttons randomly sprinkled all over some scifi-movie-looking GUI and even the builtin anti-virus software defaulting to regularly putting big popups on your screen saying "Windows Defender scanned your computer and found no viruses.", which makes the heart do an extra beat. The combination of 100s of little things like this that each take away a little from the overall experience.
I'm actually quite read up on this issue, because I have it myself and I've even had surgery for it. The root cause is that the resting position of the eyes is not parallel, they are pointing outwards when you close your eyes. This is a condition that you and I were born with. If one eye is very dominant, the brain will learn to ignore the input of the other eye and you get exotropia. If both eyes are similarly dominant however, the brain will train the eye muscles to subconsciously hold the eyes in parallel, masking the condition. Not uncommonly, kids get an eye-patch over the dominant eye to train the other one for this reason. (If the resting position is inwards, you will have esotropia (be cross-eyed) no matter what because human eyes lack the muscles to compensate outwards.)
This happens automatically and you don't even realize that something is not normal because it's been like this for your whole life. In reality, though, the eye muscles are tense in the same way as when you intentionally make yourself cross-eyed, all the time except when you close your eyes. As you get older, the eye muscles get weaker and also stretched out, making the condition more and more prevalent. I was 35 when I was diagnosed but I had struggled hard with "keeping the pictures together" for at least 10 by then, and the problems were there my whole life, just very lightly.
The VR headset did not cause this problem, you were born with it. It is not impossible that VR made the problems come a year or two earlier than it would had otherwise, but I am not so sure.
Work without a vision is slavery, Vision without work is a pipe dream, But vision with work is the hope of the world.