I don't buy this "if you don't like it then you don't have imagination" thing. If you have imagination then you don't need to follow someone else's blueprint. I turned all my action figures into a connected superhero universe, where I gave each of them new powers and backstories. I had my own "gear" to wear that was mostly scavenged from other toys, assorted sticks, and broken tools.
Kids not being interested doesn't necessarily mean they lack imagination. It might just mean that they think a backpack-based Bowflex machine is lame.








