New to Nursing Career-NP vs CNS in California

I'm trying to decide between trying to find a acclerated BSN nursing program or acclerated masters nursing program that would allow me to become an NP or CNS. I really do not know the difference between the two in California. Ideally I would love to work with children and I would like to become a pediatric nurse practitioner or a CNS in parent and child care. Does anyone know the main differences between the two such as responsibilities, salary, autonomy, and growth within that field? Thank you for your time!