For better user experience, all top level items in the primary menu are set to an empty href so that they only serve as labels for navigation menu sections. They cannot be clicked on and lead nowhere not even href="#". Below is an example:
Category Menu - (Parent menu item that is set to
Category 1 - (Sub Menu Link) -
<a href="http://domain.com/category/category-1/">Category 1</a>
Category 2 - (Sub Menu Link) -
<a href="http://domain.com/category/category-2/">Category 2</a>
I am working on a site that has a particular structure and I just want to know if its worth changing it or if its OK to keep as is. How will this structure effect SEO in terms of passing link juice and ranking?