Trading forex actually is a simple business, all people can easily join the forex trading business, just need the intention to start, simply open an account in a particular broker let's say FXOpen, then install trading platform or use a web trading platform to login account, verify the account to fulfilled KYC, then make a deposit to start trading, it's a very simple step.
However the most difficulties in forex is how to make consistent profit, here knowledge, skills, psychology trading has role in determining traders will become successful or fail traders