Go to any of those sprawling office parks that infest the generic suburbs of North America.
Find the headquarters of any company that has a mixture of “blue-collar” and “white-collar” employees.
Note that the great majority of male “white-collar” employees park head-in, whereas the great majority of male “blue-collar” employees back into their parking spaces.
Formulate a sociological theory that accounts for this cultural phenomenon.
Now you have a hobby. You’re welcome.