I've been thinking about how we explain and explore the meaning of things we do in church. At our Baptism preparation evenings, I am aware that some of the people who come are quite unfamiliar with things we take for granted.
So now is the time to implement the Smash aliens principle. Back in the 70s, they were mystified why people would use potatoes when you can have instant mash. I was never quite sure why a chocolate company was making the stuff.
In our case the question is: how would you explain to the Smash aliens the fact that you choose to bring your child to one of the oldest buildings in the area, and have water poured on their head by a stranger?
Might be an interesting way to start the conversation!