Can't wait for E-SIM to be implemented on the iPhone. Being stuck with removable pieces of plastic in 2018 is mind boggling.
Eventually it will happen. I know some people would be upset if the archaic SIM card disappeared, but in the era of disappearing buttons and jacks/ports, inserting a tiny piece of plastic in the side of your phone should be seen in the same light as something that really shouldn’t exist anymore. It’s a transition that people will adapt to and eventually at some point appreciate. Some of us will appreciate it from the start.