While, yes, at a good school you can go from being a civilian to a civilian trained in a manner similar to military or police, it is not meant to turn you into these things; but rather to give you an understanding that self-defence is NOT limited to unarmed combat (even if the laws in your country say otherwise). Anyone can learn Krav Maga, and should learn it (or at the very least a legit style with self-defence components), so that everyone may walk in peace.