I think it is in Greece’s interest to leave, I just worry about those currently in charge. Their ‘rock star’ finance minister calls himself an ‘erratic marxist’.
https://www.youtube.com/watch?v=A3uNIgDmqwI
It’s not in Greece’s interest to leave. They have no economy (except that based on the soon to vanish tourism.... I know people who just cancelled a trip there) and a huge welfare state that they cannot satisfy.
They now have an insane leftwing populist government that seems to believe that the country can live on air and that it was immoral of the EU to expect to be paid back for the social services loan it had made to the totally non-productive, dysfunctional Greek population. Lots o luck.