parent without constructor in this concrete case is correct PHP8?

is this code correct not in terms of functionality, because works. In terms of encapsulation etcetera? IMO is weird parent doesn’t have a constructor. But I think parent doesn’t need a constructor in this case? What do you think? Thanks.

class DTO extends ParentDTO
{
    public function __construct(
        protected ?bool $test,
        protected string $message,
    ) {}

    public function test(): ?bool
    {
        return $this->test;
    }
}

abstract class ParentDTO
{
    protected string $message;

    public function message(): ?bool
    {
        return $this->message;
    }
}