Given that I cannot then run my IDE in that container

Why is that? My team works in a Docker environment, and we all run an IDE. When a new guy arrives in the team, he just runs a "docker pull" from our registry and he's up and running with everything installed in a matter of minutes. Docker has clearly been overhyped, and we all lived our daily lives without it, but I see a lot of developers who don't make an effort to understand what it is, and most importantly what it is not, and then call it garbage.

I think you overestimate the number of people who really need a computer (laptop, desktop, netbook). Most people just need to access multimedia functionnalities : web, mail, photo, video, facebook, etc... I recently bought a tablet for my wife. She's really happy with it. Because she doesn't try to work with it. As someone mentionned earlier, tablets and computer don't have the same purpose : one is purely for entertainment and ease of use, the other is more versatile, allows you to program, but hey, how much programmers is there in the real world ? We are outnumbered by multimedia consumers. Tablets are here to stay.