I'm going to be honest - you are coming off as very contrarian for the sake of being contrarian. You seem to be consistently responding to my comments in this thread with the equivalent of "You're wrong, because I like to do things this way."
That isn't an argument against any point I've made. Please show me some code and give me some context that will make me rethink my assumptions and arguments if you feel the need to point out my flawed thinking.
No, plain maps are nothing more like plain assoc lists (and similar stuff) in plain old Lisp. We were modelling key/value data structures like that from the earliest Lisp. Sure its easy to use. Up to a point. Lisp had an evolution. Things changed. I've seen quite a bit larger Lisp software over the years and the ones not using explicit classes turned out to be harder to maintain.
That isn't an argument against any point I've made. Please show me some code and give me some context that will make me rethink my assumptions and arguments if you feel the need to point out my flawed thinking.