Four senior guys are golfing

Four senior guys are playing golf.
“These hills are getting steeper as the years go by,” one complains.
“Yea, and these fairways are getting longer too,” says one of the others.
“The bunkers are a lot bigger than I remember them as well!" says the third senior.
After hearing his mates complaining, the oldest of the four in his seventies, pipes up and
says, “Guys, just be thankful we're still on the right side of the grass!”