Say if they didn't know what one was until 10?
I think it would be a ridiculous idea really, but it's very interesting to poke around the various reasons for why someone might choose to do that. What do you think? What do you think would change if the next generation of under 10s had no idea of what they looked like? In terms of realising that what you see and what others see are the same (well, we think!)......would this have a huge or negligible effect?