Saw a clever setup just now. Elsa & I are waiting for music class to end, and a dad came tooling up the Finchley Road on an electric-assist PowaBike with a kid on the front and one on the back. The seat in front was a Centric Safe Haven, but I didn't catch what the back one was.
Everybody concerned seemed comfortable and safe. Okay, it's not for us, but it's good to see that they've come up with a unique solution that works for them. I wonder if Mum rides it too?