What is a common mistake golfers make during practice?

Focusing on one aspect of the game is often a common mistake golfers make during practice because it can lead to an unbalanced skill set. While it's important to refine specific parts of one’s game—such as putting or driving—over-concentration on a single area can neglect other crucial elements that contribute to overall performance. Golf is a multifaceted sport that requires a harmonious blend of various skills, including short game, long game, and mental strategies. By honing in too much on one aspect, players may fail to develop a well-rounded game, which can be detrimental in competitive situations where adaptability is key.

The other options, while also relevant to practice routines, do not generally lead to the same pitfalls as over-focusing on one element. Mental preparation is vital for performance, practicing at varied locations can enhance adaptability and creativity, and setting realistic goals is essential for maintaining motivation and measurable progress. Thus, the choice of concentrating on just one aspect encapsulates a common oversight that can limit a golfer's overall improvement.