Yes I'm on Mac and to boot, my keyboard is one of those smaller ones and I'm definitely missing some of the expected keys. I get that Emacs is customizable but it's a bit unapproachable when I want to dive into coding.
If I recall correctly, on my mac I had an issue with the meta and super keys. I had to rebind Meta to Cmd and Super to Opt. Im pretty sure I used Bozhidar Batsov's solution for this.
Another reason for you to stick to Emacs is Emacs Lisp. If you enjoy writing lisp you are not going to find a better piece of software written in any other lisp language. I prefer common lisp to elisp (alot!) but this is a fact in my opinion. Plus elisp is somewhat similar to common lisp and learning/appreciating the differrnces between the two will make you a better lisp programmer.