At the current stage, we are not yet ready for a cashless society, and given the challenges we face on a global scale, we will not be ready for it in the near future either. What humanity expects in the distant future, no one knows.
A cashless society presupposes a high level of development of technology and technology, as well as a high material support for members of society. In practice, we need our world to be without poor people. So far, I do not see a period when we can achieve this.