I don't miss alignment in other games because I don't expect them to be there. I liked alignment in D&D because I found the idea of Law, Chaos, Good, and Evil being forces that shape the planes to be fun and interesting. I didn't care if alignment wasn't particularly realistic because it worked for the kinds of stories I want to tell in D&D which is just a simple Good versus Evil narrative. But over the years I've come to the realization that most of my players don't have that same interest. And that's totally cool. You're right, alignment is something of an anachronism in 5th edition just barely hanging on out of sheer momentum. WotC might as well rip the scab off quickly and just relegate alignment to the optional rules in the DMG at this point. I do miss alignment but I can still have fun without it. I'm always going to miss the LG paladin though.