Do you have a link of the countries that are banned and for what reason? Well, in regards to public fans it was expected amid the rising cases of COVID-19 in their country. I read this news regarding the men competing with women here: https://www.nytimes.com/2021/05/28/sports/olympics/women-athletes-competition.html and I guess they should stayed with the traditional approach, not good I guess. Even if there are too many women on the Olympics they should have set aside the quantity and compete with their gender. This isn't the time for gender equality, for goodness sake.