Elders have elders' love life. As children it is better not to interfere. Of course, if it is to engage in a third party or improper male-female relationship, then it is a different story.
Maybe you are thinking too much. If it is with any personal hobby such as playing mahjong. Square dancing. Or old friends gathering, etc. Will also often go out. In short, as children to elders respect and care should not be less.