Cannot customize page by country or organization level

Content

Hello; 

when hiring an employee, I would like to make Gender field mandatory just for Italy and not for US. 

However, when I customize by country or organization level, this customization doesn't work and the Gender field is not mandatory for Italy yet.

I have also tried to logout, clear cache and access the system again, but the issue persists 

How can I solve this issue? 

Regards, 

Valerio