Another aspect of TLS I'm personally worried about is the ability of regulators to influence CAs. It gets increasingly more difficult to use websites that don

Another aspect of TLS I'm personally worried about is the ability of regulators to influence CAs. It gets increasingly more difficult to use websites that don't implement HTTPS. Some browsers will warn you if you try to enter a password on such websites, for example. Most users will not know what to do with such warnings, and will probably close the website upon seeing one. It's not impossible to imagine that, in ten or so years, some browsers might disallow plain HTTP entirely. It's trivial for major governments (the US and the EU in particular) to impose know-your-customer requirements on CAs, or to force them to revoke the certificates of some unsavory websites. Replacing your default browser with one that doesn't care about TLS support might not be trivial at that point, see Apple's restrictions on third-party browsers and Microsoft's recent tricks.