Why some drupal modules are required

[Eduardo-Morales-Alberti]

Why some modules are required on the composer json?

Are they still in use?

https://github.com/nuvoleweb/drupal-behat/blob/1.x/composer.json#L22

        "drupal/chosen": "~2",
        "drupal/coffee": "~1",
        "drupal/paragraphs": "~1",