Only the fairly old ones.
You can be any age at which you can use a standard club. Golfers have started as early as age 6. (Toy clubs and players under 9 or 10 are not allowed on many courses.)
There are few people that are over the age 114. There are not many people that make it to the age of 100.
How many US citizen are 18 years of age and over?
No, the only golfers who have won a men's professional golf major after the age of 46 are Julian Boros 48, Jack Nicklaus 46 and Old Tom Morris 46.
The average age of a major in the United States Marines is approximately 45 years of age. Majors do not have to be older but they do have to have experience.