In your letter dated Wed, 29 Mar 2017 15:37:45 +0200 you wrote:
Yes, Telekom Slovenije still runs PPPoE over their fiber network. I was making fun of that 9 years ago ( http://blog.ipspace.net/2008/10/internet-access-russian-dolls.html) and not much changed in the meantime.
Hooking up CPEs to an ethernet-like link without actually running a routing protocol has its own set of issues. PPPoE framing is also simple enough that it should not cost a lot of CPU time.
Unfortunately, some people (including my father) believe that using PPPoE from Windows is more secure than running it from the edge router (aka *modem *because some people never saw a real modem in their life), so he's running PPPoE from every Windows laptop he has in his house.
Fascinating. There are people who insist that every CPE has to come with an IPv6 firewall that has to be enabled by default. And then, connecting a Windows system directly to an internet connection because it is believed to be more secure than a CPE. Worlds apart. But yes, for those markets, assigning a /64 seems to be required.