The only thing you need to get the yips is a lot of exposure to the pressures of putting. Tour pros do much more real and practice putting than most amateur golfers and are therefore more prone to getting the yips at an earlier age. Further examples include Bernhardt Langer, Sam Torrance, and Adam Scott. Historically, Harry Vardon, Sam Snead, Gene Sarazen and Ben Hogan all got them by early middle age, often when they were still superb ball strikers.
You really do spout some nonsense. Show me evidence that they are prone. Rotella says it's in the mind and therefore can be controlled and as others said a lot of pros seem to agree, Have your read the book "Putting out of your mind"