I hate the cranky villager personality in this game, they have been downgraded a lot, they have lost their charm and personality. I don't like how the crankies talk like they're, "old", depending on how old I see the cranky villager as. The cranky villager personality was SO much better in New Leaf!
The old man dialogue works a lot better on villagers like Dobie, Hamphrey, Curt, Gonzo, Avery, and Gaston, but the dialogue is really unfitting for almost any other cranky villager who looks a lot younger to me, so the dialogue can be really unsettling, depending on who says it.
This bothers me to the point that I have a strict no cranky villager policy, and I prefer to have any other personality, except for the boring and bland crankies.
I got totally uncomfortable having to sit through Cyd and Chow's dialogue during their time on my island, and I was delighted when I finally got them to leave. Cyd and Chow weren't bad villagers themselves, but having to listen to their dullness made my skin crawl...they are not old to me at all!