Just curious: what's her reasoning behind no sunscreen?

I don't know what I'd do in a situation like that. I could be wrong, but doesn't sunscreen help with things like heat stroke too?

For the form, I'd include things like:

-she acknowledges that her child will be outside for up to ___ hours in a day.
-she's aware that your yard/the parks/streets etc aren't always very shaded.
-she does not want her child wear sunscreen
-she will take full responsibility for her child getting a sunburn.
-in the event of a sunburn or heat stroke, she must pick her child up immediately.
-she must provide UV protected clothing, hats, etc.

As I'm writing this out I'm not even sure that I would even agree to this....how old is the child?