Possible reasons for this
  1. It's a new dating app
  2. They grew up in a nook under the stairs like Harry Potter
  3. Because hula hoops are so two years ago
  4. They're getting over the flu and think they still might be contagious but still want to be outside and doing an activity
  5. The acrobat meet up just let out and everyone wants some alone time
  6. This is how you buy drugs now