In rural North Central Indiana, there is no doubt that the buck population has grown. I live in a very rural area with heavy woods on two sides and farm fields with either corn or beans planted yearly. EVERYONE who comes by here comments at one time or another about the number of bucks being sighted, and there are some with racks that are becoming impressive... Thing is, there's also an (over) abundance of the does to match the buck population. My dog is busy every evening barking at the deer just off in the woods and in the field...
Anyway, yes, I believe the buck population is indeed aging a bit, but so also are the does. Seems as if hunters aren't harvesting enough does, although they could...