Oh, god it is. Yachiru would love to hear about heroes, legends and flowers. Though, she might end up eating a flower or two. The mothering would be accepted since the girl has never had one. Unless, you count Yumichiki The strength would remind her of the healers back home being all nice and sweet until they put their foot down.

Yachiru doesn't always need good role models, but she'd love someone to do some shenanigans with. I'm sure that Yuffie being a ninja will impress her. Since, in my headcanon, she thinks ninja are super cool.