When the kid and I were in Texas- specifically the DFW area - we bought her father a couple of Super Bowl shirts. Why not? They were 60% or 70% off and he is a fan of football.
Today he wore one and the kid exclaimed, "Daddy you're wearing your Super Bowl shirt! What's a Super Bowl? Does Poppa (her great-grandfather) play in the Super Bowl?"
It seems she thinks the Super Bowl involves bowling instead of football. Ah well, you live and you learn.