Are you ideal enough, perfect enough for communism?
Can you work to the best of your ability without special compensation?
Can you share to support whatever is needed by others without complaint?
Can you sacrifice of yourself, from yourself for the good of all?
Can you lift your fellow man/woman, whoever they are, whatever station they have in life, whatever disability the face to stand equal with you?
Can you give up your excesses and live a minimalist lifestyle if necessary for as long as necessary?
If you can answer yes to these question, you may be a candidate for communism.
IMO, communism doesn't work because we the people are not capable of making it work.
People naturally gravitate toward power. Having power and consolidating it.
If you think you are immune to the temptation of power, I suspect you might be lying to yourself.
The power to live where you want, live how you want. Money/capitalism offers this if you can learn how to play the game.