We collect your date of birth to confirm that you are old enough to use Strava. This also helps provide an experience appropriate to your age and strengthens the protections we offer younger athletes. We may share your age with our other apps, such as Runna, to tailor your experience. To learn more about why we collect information and how we use it, please visit Strava's Privacy Policy.
For more information about privacy control defaults for minors on Strava, please review this article.