Traveling alone can be refreshing, what with a plenty alone time and miss of budgeting for a organisation of people. And roving solo can be good for introverts, who tend to remove appetite being around crowds anyway.
Article source: https://www.huffingtonpost.com/entry/11-places-to-visit-if-youre-an-introvert_us_5b23c59ae4b07cb1712dd2c2