private setting variables.

Alternative.swift

 struct CreateAccountViewModel {

     var image: Image
     var accentText: String
     var choosePathVM: ChoosePathViewModel {
         didSet {
             self.currentHeader = choosePathVM.current
             self.employeeDestination = choosePathVM.current.header == HeaderBody.employee.header
             self.authViewModel = employeeDestination ? .employeeForm : .businessForm
             self.formModel = employeeDestination ? .employee : .business
         }
     }

     var buttonImage: Image = Image(systemName: .rightArrowLine)
     var spacerHeight: CGFloat = 40

     private(set) var currentHeader: HeaderBody
     private(set) var employeeDestination: Bool
     private(set) var formModel: SignupFormViewModel
     private(set) var authViewModel: AuthViewModel

     init(
         image: Image = Image.greenPhonePocket,
         accentText: String = "Choose Account type",
         choosePathVM: ChoosePathViewModel = ChoosePathViewModel(
             index: 0,
             explanations: [.employee, .business]
         ),
         buttonImage: Image = Image(systemName: .rightArrowLine),
         spacerHeight: CGFloat = 40,
         formModel: SignupFormViewModel
     ) {
         self.image = image
         self.accentText = accentText
         self.choosePathVM = choosePathVM
         self.buttonImage = buttonImage
         self.spacerHeight = spacerHeight
         self.formModel = formModel
         self.currentHeader = choosePathVM.current
         self.employeeDestination = choosePathVM.current.header == HeaderBody.employee.header
         self.authViewModel = employeeDestination ? .employeeForm : .businessForm
         self.formModel = employeeDestination ? .employee : .business
     }
 }