suivicpt/app/Policies/HouseholdPolicy.php

<?php

declare(strict_types=1);

namespace App\Policies;

use App\Models\Household;
use App\Models\User;

class HouseholdPolicy
{
    public function view(User $user, Household $household): bool
    {
        return $household->members()->whereKey($user->id)->exists();
    }

    public function manageMembers(User $user, Household $household): bool
    {
        return $household->members()
            ->whereKey($user->id)
            ->wherePivot('role', 'owner')
            ->exists();
    }
}