Employees and Line Managers seeing My Client Groups after enabling Journeys

Summary:

I have enabled Journeys in our TEST environment and have noticed that our Employee and Line Managers now also have access to the My Client Groups tab.

Content (required):

After enabling Journeys in our TEST environment, and setting up the security privileges for our custom Employee and Line Manager roles, I have noticed that both employee and line managers (without an HR Role) are now seeing the My Client Groups tab. Is this normal or did I give an extra priviledge in the security setup that is making this change?

After disabling Journeys, the tab disappears, so I know that this is the change that has enabled the visibility. I would only like My Client Groups to show for HR Users.