At the top of every screen (whether you're in your own Parent view or inside a child's account), there's a Viewing as [Name] indicator with a switch icon next to it. Selecting it opens Switch account, a list of every learner linked to you, plus Your account (your own Parent login), and an Add Learner shortcut at the bottom. This is the fastest way to move between children, or back to your own account, without hunting through menus.