Further incentivizing the use of HTTPS everywhere, imo. It's such a cheap standard now. Correct me if I'm wrong, but I don't see any good reasons for a site to be running HTTP any longer, other than laziness.
I'll give it a shot. If you put up your site behind HTTPS you are breaking the web for older web clients. Many sites have already deprecated TLS v1.1 so even 10 year old devices may no longer be able to access the web. HTTPS is great but it has a cost.
> even 10 year old devices may no longer be able to access the web
I think you mean 10 year old software, which is a much smaller bucket than 10 year old devices. And if you're browsing the web with 10 year old software, you have much bigger problems including but not limited to committing security-suicide.
I found some old Macs belonging to a non-profit to be apparently useless (for their purposes) because you couldn't upgrade the system software enough to let a browser operate properly with secure sites. Sure, there's Linux, but they appeared to be useless as Macs.
Well the TLS change breaks software (FF 26) (2015) and affects android versions <= 19 (2014). Kind of a bummer if you have old smartphone. But I agree, it's a tiny bucket and it's best to upgrade when you can.