I wonder if Jenn just made up the name Rosie because I feel like Tim never uses the name. Has he? Since he doesn’t say the name, it makes me think Jenn just came up with a fake one. Or, the full name is something else and Rosie is a nickname or middle name. I mean, Jenn doesn’t even call her own kids by their names and calls them the same nickname. Would be funny if they had several nannies and she called them all Rosie, just like they call both boys Buddy.
Didn’t she say that Rosie was a gamer and mentioned a few things about her in the vlog where they went to the 90s store? After that I wondered if she was a younger nanny than we assumed, so a college student is possible and maybe she graduated?