I assume you're being sarcastic, but an Emacs beginner has no idea what 'CUA mode' is.
Jokes aside, Emacs UX is just completely different to anything modern. Computer users not enlightened by Emacsen try to press Esc to get out of trouble, assume scrolling doesn't move the cursor, etc. Chorded keybindings are a mind-blow, and they have their own further pitfalls too.
I either got used to Emacs behaviours, or find them superior (can't tell which one) but frankly I think they might be a big deterrent. For new users, it must be like getting into a car where all the controls are different. Brake and accelerator swapped, clutch is hand-operated (and woe to you if you've only driven automatic), stems are swapped, and some vital controls are operated by pressing buttons with the top of your head. Computer programs of the past 20 years have some basic common behaviours that are almost synonymous with basic IT skills, and Emacs diverges in many of them.
I adopted Emacs in the relative modernity of 2012, when I joined a mostly-airgapped Linux environment and needed a power editor. I persevered and grew to love Emacs, but frankly if I could have downloaded VS Code or Pycharm, I probably would have done.