The important thing is having a balance. Never being comfortable alone can be an issue just as spending all of your time alone can be.

> However, the two things must be mingled and varied, solitude and joining a crowd: the one will make us long for people and the other for ourselves, and each will be a remedy for the other; solitude will cure our distaste for a crowd, and a crowd will cure our boredom with solitude. (Seneca)

Yes but my main point is that it's very easy to get stuck in a local optimum without ever realizing that there can be a significant social component to one's anxiety issues that can be easily explored.