Is including the loop necessary for page.php? [duplicate]

QUESTION: Is it necessary to include the wordpress loop in page.php? If it is not necessary, why do many themes (including the wordpress 2013 default theme) include it?

I noticed this discussion on the wordpress forums, but I didn’t understand the final answer.

furthermore it is stated,

You use The Loop in your template files to show posts to visitors. (Source:http://codex.wordpress.org/The_Loop_in_Action)

BACKGROUND: I am attempting to develop special page templates, and I realized that I don’t quite understand what the benefit is of including the loop for pages.php, because after all, pages don’t care about posts, that is something that concerns index.php.

Including Loop is not necessary, but recommended. Also, if you want to use some features you need the loop, for example:

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<?php the_content(); ?>
<?php endwhile; endif; ?>