string or Carbon object wit livewire, which one ?

Hello

I try to send Carbon date string during mount to livewire parent component.

I have child component @livewire('counting.action-date').

during mount, it will pickup carbon:now() and should emitUp to parant component.

    public function mount()
     {

       $this->actionDate = Carbon::now()
                      // ->format('Y-m-d');
                  ->toDateString();
       $this->sendActionDate($this->actionDate);
     }

 public function sendActionDate($value)
    {
       $this->validate([
        'actionDate' => 'required',
     ]);
      $this->actionDate =  $value;
      $this->emitUp('savedDateUpdated', $this->actionDate);
   }

** if I dump $this->emitUp('savedDateUpdated', $this->actionDate);

• it says null // app\Http\Livewire\Counting\ActionDate.php:29

** if I dump $this->actionDate or $value

• "2023-01-10" // app\Http\Livewire\Counting\ActionDate.php:29

Parent component:

    public function savedDateUpdated($value)
    {
     $this->saveDate = $value;
   }

• if I delete exist value from input element and add date manually, it will send new value to parent.

** input element is blade component:

   <x-date-input wire:model="actionDate">
     <x-slot name="type">
       date
  </x-slot>
  <x-slot name="name">
    action_date
 </x-slot>
<x-slot name="placeholder">
     Laskun Kirjauspäivä
 </x-slot>

I am stuck, how fix this ???

thanks advice ....Mika.