I don't understand why you are so aggressive to a layperson asking a question like this. They simply want to better understand what implications the existence o

I don't understand why you are so aggressive to a layperson asking a question like this. They simply want to better understand what implications the existence of neutrinos has on our understanding of the world, what they actually do, etc. I doubt they were wanting some sort of philosophical understanding of a greater Purpose for neutrinos.