Headcanon: So we know that Tera, Zoro's mum, used to be a bandit and we know Shimotsuki Billage is very close to Dawn Island.
So what if she knew Dadan??? Zolu had a connection even before they were born!
Her knowing Dadan and being old buddies. Until she had to lay low, and got herself on Shimotsuki and met with Arashi.
If she were alive, her and Dadan would definitely become buddies again. Dadan would talk to her about the brats (Ace and Luffy) and how Garp was horrible for getting her stuck with children.
Tera would go there and bring Zoro along, and Luffy would be mesmerized with Zoro holding three swords (he would also nag the hell out of him so they could go and play).
Also Big Brother Ace and Sabo 🥺 They definitely would tease Zoro just like Kuina did. Luffy defending Zoro because he's his friend 🥺💚❤️