Map doesn't pop up require user location, and it doesn't show my current location. It just appears as a map

import SwiftUI

struct MapView: View {
  @State var showHome = false
  @StateObject private var viewModel = MapViewModel()
   
   
  var body: some View {
    ZStack {
      Map(coordinateRegion: $viewModel.region, showsUserLocation: true)
          .ignoresSafeArea()
          .accentColor(Color(.systemPink))
          .onAppear{
            viewModel.checkLocationAuthorization()
        }
//      VStack {
//        Image("Back")
//          .padding([.leading, .top])
//          .frame(maxWidth: .infinity,alignment: .leading)
//          .onTapGesture{
//            showHome.toggle()
//        }
//        Spacer()
//      }
         
    }.overlay(RootView())
//    if showHome{
//      HomeView()
//    }
  }
}

struct MapView_Previews: PreviewProvider {
  static var previews: some View {
    MapView()
  }
}

final class MapViewModel: NSObject, ObservableObject, CLLocationManagerDelegate {
   
  @Published var region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: 33.748997, longitude: -84.387985), span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))
   
  var locationManager: CLLocationManager?
   
  private func checkLocationServiceEnable() {
    if CLLocationManager.locationServicesEnabled() {
      locationManager = CLLocationManager()
      locationManager?.desiredAccuracy = kCLLocationAccuracyBest
      locationManager!.delegate = self
       
       
    }else{
      print("Your location service is off")
    }
  }
   
  func checkLocationAuthorization() {
    guard let locationManager = locationManager else {return}
     
    switch locationManager.authorizationStatus {
       
    case .notDetermined:
      locationManager.requestWhenInUseAuthorization()
    case .restricted:
      print("Location is restricted")
    case .denied:
      print("You have denied location permission, go to settings to change it")
    case .authorizedAlways, .authorizedWhenInUse:
      region = MKCoordinateRegion(center: locationManager.location!.coordinate, span: MKCoordinateSpan(latitudeDelta: 0.01, longitudeDelta: 0.01))
    @unknown default:
      break
    }
  }
   
  func locationManagerDidChangeAuthorization(_ manager: CLLocationManager) {
    checkLocationAuthorization()
  }
}