Why Japan does not cancel the kovidny Olympic Games? Before start week, and is more increasing than problems

Before opening of 2020 Summer Olympics to Tokyo there is exactly a week, and every day it becomes more and more obvious that they should be transferred once again. Initially they had to pass in the summer of last year, but the pandemic interfered. What Games will take place without audience and with very rigid restrictions, all somehow reconciled, but everything rises a question more sharply - who will compete? .