Xcode Simulator: How do I get the settings "Screen time"?

I try to test in app purchases with sandbox users. Unfortunately I always get the error "Cannot connect to itunes store". All bug fixes I've seen mention you should reset some settings in the "Screen time" section of the settings app. However, I don't have any screen time in the settings app. What am I missing? iOS version is 13.3 of the test device. I've also tried to login to the itunes account with the sandbox user, but this doesn't work of course. So what am I missing?