Fixes #43: parent signature clause only shows up if registrant is under 18
Fixes #43: parent signature clause only shows up if registrant is under 18

scotthue/unicycling-registration,scotthue/unicycling-registration,scotthue/unicycling-registration,rdunlop/unicycling-registration,rdunlop/unicycling-registration,rdunlop/unicycling-registration,rdunlop/unicycling-registration