We all need to be educated to develop awareness because that will help us to create right decisions in the future. Most particularly for the kids as they can be great leaders in the future. However, with this example, its obvious that these kids only focus on the present, so they chose $100 to buy it something they want immediately. Although they may be aware about bitcoin, but the fact that most store owners do not accept it as a payment method, then they think its wiser to chose $100 over 1 bitcoin. And we cant blame them for that because kids will always think far different from matured adults.
Not knowing the value of what is before you could really be one's downfall. You know, someone who lives by the riverside would not know the value of the freshwater that is flowing beside him or her compared to someone who is living in the desert. You know the story of how people in the desert die of taste while holding a bottle of water? That's just how the water is valued. Much more than your $100.
That's just the situation with someone not having to value 1BTC and gives more value to $100. You truly don't know the value of 1BTC but, they surely value $100 because, they know the value and can use it immediately.