iOS 13 doesn't have a "Sandbox Account" option

I'm trying to test my subscription app, but I can't find the "Sandbox Account" option anywhere. I've seen some other people talking about it not existing in iOS 13 - is this true?

If not, why isn't it showing up? Do I need to be signed in to the apple ID of the developer account?
iOS 13 doesn't have a "Sandbox Account" option
 
 
Q