Self-validating Options class for Laravel

Options.php

<?php

namespace App\Support;

use ArrayAccess;
use ArrayIterator;
use Illuminate\Support\Facades\Validator;
use Iterator;
use IteratorAggregate;

abstract class Options implements
    ArrayAccess,
    IteratorAggregate
{
    protected array $attributes;

    public function __construct(
        array $attributes
    ) {
        $this->attributes = $this->validated($attributes);
    }

    public function rules(): array
    {
        return [];
    }

    public function get(string $name, $default = null): mixed
    {
        return $this->attributes[$name] ?? $default;
    }

    public function has(string $name): bool
    {
        return isset($this->attributes[$name]);
    }

    public function __get(string $name): mixed
    {
        return $this->attributes[$name];
    }

    public function __isset(string $name): bool
    {
        return isset($this->attributes[$name]);
    }

    public function offsetGet(mixed $offset): mixed
    {
        return $this->attributes[$offset];
    }

    public function offsetExists(mixed $offset): bool
    {
        return isset($this->attributes, $offset);
    }

    public function offsetSet(mixed $offset, mixed $value): void
    {
        throw new Exception('Options objects are readonly');
    }

    public function offsetUnset(mixed $offset): void
    {
        throw new Exception('Options objects are readonly');
    }

    public function getIterator(): Iterator
    {
        return new ArrayIterator($this->attributes);
    }

    public function toArray(): array
    {
        return $this->attributes;
    }

    protected function validated(array $attributes): array
    {
        return Validator::make($attributes, $this->rules())
            ->validate()
            ->validated();
    }
}