Using `sheet(item:)` with Identifiable models creates a direct relationship between your data and the sheet presentation. The sheet automatically presents when the item is set and dismisses when it becomes nil.

struct User: Identifiable {
    let id = UUID()
    let name: String
    let email: String
}

struct ContentView: View {
    @State private var selectedUser: User?
    
    var body: some View {
        List(users, id: \.id) { user in
            Button(user.name) {
                selectedUser = user
            }
        }
        .sheet(item: $selectedUser) { user in
            UserDetailView(user: user)
        }
    }
}

Why This is a Best Practice

This approach eliminates the need for separate boolean flags, reduces state management complexity, and prevents common bugs like forgetting to reset presentation states. It also makes the code more readable by clearly showing what data drives the sheet presentation.