I am probably the perfect example of the classic stereotype of autism. I am very, very solitary – through choice and also because of my quite complex social difficulties. Any involvement with others generally makes me uncomfortable. This experience might be similar for neurotypical introverts so I think that neurotypical introverts will also find this article helpful.
One major barrier to being this way is it makes it very hard to work with others in both leader (employer/manager/teacher) and follower (peer/classmate/colleague/team member) roles.