Do you want to hide products on your category page and only display the subcategory choices to your customers? You can do so by following the steps below:
Log in to your Admin Area and go to Inventory > Categories.
Click View List in the top right corner of the page, then click on the Category ID you want to edit.
Under Advanced Settings, select the Product Display tab.
Set Product Display Mode to Grid.
Set Display Columns to "0". Set Display Rows to "0".
Now, products won't be visible from category pages on your storefront. Customers will only see the subcategories when they visit a category page.