its really extremely simple, just dont NAT, is that really so hard? just because you dont NAT, doesnt mean you have to let the traffic pass through, that is also an extremely simple concept, no?
There are a shitload of people who maintain networks, like home or small business networks, that aren’t network administrators. Most of those people are not prepared to have their Chinese WiFi cameras, myriad smart appliances, and heck, even home computers easily individually accessible from the internet. It’s an extremely simple concept, no?
It isn't. Routing is good though.
And home routers have firewalls that block inbound connections by default -- including with no-NAT IPv6.
perhaps you could explain how its such a new paradigm and mental model that it simply confuses people? because I dont buy it, its without exaggerating a smaller difference in so far as this goes, than when people get a new microwave oven, and substantially less difference than when people switch phone brands.