Earlier quoted context omitted.
Major sites, really?
marksandspencer.com very.co.uk asos.com next.co.uk and many more.
I'm just not one of these people who think there are armies of people at the NSA/GCHQ spying on me. I'm also against forcing every website in the world onto https. Doing so will significantly raise the bar of accessibility for tinkerers and makers. If I had a webcam that showed the world whether my coffee put needed refilling[1], are we all saying (on this thread, and troy hunt) that it needs serving over https because the privacy and security of coffee watchers is such a closely guarded secret that they need to be secure in their coffee pot watching habit?
By all means, https up important pages and sites, but lets not make it mandatory to the extent that http is no longer supported by browsers.
As an aside... a Barclays bank advert running in the UK at the moment is showing users that 'a padlock in your browser bar ensures that you are safe and that the site you are visiting is who you think it is' - which is utter bullshit, all a padlock tells you is that site owner has spent 5 minutes setting up LetsEncrypt - it in NO way confirms that they are who they say they are, and it's this lie that Joe Public are being sold right now.
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[1] Apparently this was a thing once ;)