I am writing this as a reminder to myself in the future, when Evie has grown into a little girl. In the hope she will being riding her own bike some of the time, but maybe get tired and need some help along the way.
I saw this contraption in Germany and have seen a few variations along the Danube cycling trip, and they seem to make it possible to allow kids to have independence when they have energy, and help when tired. Therefore allowing families to cover reasonable distances!
I’m not even exactly sure how it works, except that when not in use it live on the parents bike. More weight = greater fitness training!!!