[Hoof Hearted]

But hitting a baseball is no more "athletic" than bowling, playing billiards.."

Pro bowlers and billiard players (Bet you can't name a few dozen?) are active in their sports up into their geriatric years. Few baseball players are still competitive by the time they reach their late thirties. That's because the ATHLETIC SKILLS required have left them. I have never heard of a pro bowler or billiard player whose body could not handle the demands of the game in their later years.

[AmishDude]

Baseball does involve a bit of running and other athletic requirements, but hitting the baseball is less so. Again, the analogy to golf is more precise -- the senior's tour.