lpr-partynest/app/views/staffs/home/show.html.erb

<div class="container">
  <ul>
    <% if policy(%i[staff person]).index? %>
      <li>
        <%= link_to Person.model_name.human(count: 0), staff_people_path %>
      </li>
    <% end %>

    <% if policy(%i[staff passport]).index? %>
      <li>
        <%= link_to Passport.model_name.human(count: 0), staff_passports_path %>
      </li>
    <% end %>
  </ul>
</div>