My dad used to carry my older sister and I on a regular 3-speed dutch men's bike, with a yepp mini-style seat the front for my sister and a regular child seat at the back.. carried backpacks for all of us as well. Unless she actually wants a cargo bike, there are other alternative solutions.
-edit-
Basically something like this:
I personally think she should just get something like a "modern" Pashley, but I feel like I'd like to be literate in all possible solutions before recommending something. And also what is a "modern pashley" ??
My dad used to carry my older sister and I on a regular 3-speed dutch men's bike, with a yepp mini-style seat the front for my sister and a regular child seat at the back.. carried backpacks for all of us as well. Unless she actually wants a cargo bike, there are other alternative solutions.
-edit-
Basically something like this: