Background: Robert Tyre Jones Jr. (March 17, 1902 - December 18, 1971) was an American amateur golfer who was one of the most influential figures in the history of the sport; he was also a lawyer by profession. Jones founded and helped design the Augusta National Golf Club, and co-founded the Masters Tournament. The innovations that he introduced at the Masters have been copied by virtually every professional golf tournament in the world. Jones was the most successful amateur golfer ever to compete at a national and international level.
Context: Born in Atlanta, Georgia, Jones battled health issues as a young boy, and golf was prescribed to strengthen him. Encouraged by his father, "Colonel" Robert Purmedus Jones, an Atlanta lawyer, Jones loved golf from the start. He developed quickly into a child prodigy, who won his first children's tournament at the age of six at his home course at East Lake Golf Club. In 1916, Jones won his first major golf event when he claimed the inaugural Georgia Amateur Championship conducted by the Georgia State Golf Association at the Capital City Club, in Brookhaven, at age 14. His victory at this event put him in the national spotlight for the first time. The Georgia Amateur win caught the eye of the United States Golf Association which awarded Jones his first invitation to the U.S. Amateur at Merion near Philadelphia. Jones advanced to the quarterfinals in his first playing in the event.  He was influenced by club professional Stewart Maiden, a native of Carnoustie, Scotland. Maiden was the professional at the Atlanta Athletic Club's East Lake Golf Club, who also trained Alexa Stirling, five years older than Jones but also a prodigy, at East Lake around the same time. Jones also received golf lessons from Willie Ogg when he was in his teenage years. Jones played frequently with his father, a skilled player himself. The younger Jones sometimes battled his own temper on the course, but later controlled his emotions as he became more experienced. Jones toured the U.S. during World War I from 1917-18, playing exhibition matches before large crowds, often with Alexa Stirling and Perry Adair, to generate income for war relief. Playing in front of such crowds in these matches helped him, as he moved into national competition a bit later on.  Jones successfully represented the United States for the first time, in two winning international amateur team matches against Canada, in 1919 and 1920, earning three of a possible four points in foursomes and singles play. In 1919 he traveled to Hamilton Golf and Country Club, for his first serious competitive action outside the U.S., while in 1920, Engineers Country Club, in Roslyn, Long Island, hosted the matches. Still a teenager, he was by far the youngest player in the series. Jones also played in the 1919 Canadian Open while in Hamilton, Ontario, performing very well to place tied for second, but 16 shots behind winner J. Douglas Edgar. Edgar had immigrated from England in 1919 to take a club professional's job in Atlanta at Druid Hills Golf Club; Edgar mentored and played frequently with Jones from 1919 to 1921. Edgar was credited by Jones with helping develop his game significantly.  Jones qualified for his first U.S. Open at age 18 in 1920, and was paired with the legendary Harry Vardon for the first two rounds. He won the Southern Amateur three times: 1917, 1920, and 1922.
Question: how did he start playing golf?

Answer:
Jones battled health issues as a young boy, and golf was prescribed to strengthen him.