I gotta stick up for the old people because I hope I will be there some day. If I get behind an old person and they are moving at their own pace, I find a way around them. I've told my kids, when I get that age, I won't give a F. I think 75-ish qualifies you for that privilege.
Blinker on.....blink....blink.....blink.....old person moving over.....better clear me a spot! I'm too old to turn my head to check for blind spots.