The following is an excerpt from the Professional Disc Golf Association's web site.
"Disc golf can be played from school age to old age, making it the one of the greatest lifetime fitness sports available. Specially-abled and disabled participate, giving them the opportunity to take part in a mainstream activity. Because disc golf is so easy to learn, no one is excluded. Players merely match their pace to their capabilities, and proceed from there.
The Professional Disc Golf Association, with over 16,000 members, is the governing body for the sport, and sanctions competitive events for men and women of every skill level from novice to professional. Permanent disc golf courses are found in countries worldwide, as well as throughout the United States."
For example, the members in GVDG and those who play in Greenville, NC range from teens to seniors. People of all backgrounds play and compete all over the world. This game has one of the broadest demographics of any sport or activity. So the answer to "who plays disc golf?" should be "YOU can play disc golf".