Concealed Carry

I know there are rules...but in MHO I dont get WHY? its OK to go into a crowded full of kids Mc Donalds carrying, you can go the Mall carrying....more kids per capita than a school most of the time...AND whomever made that rule HAS to KNOW that the CRIMINALS NOW KNOW that NO one else there has a gun....fricken PArty time for them....I guess I say if you got permission to carry ..you got permission to carry....do they want you to leave your weapon in the car, where it is susceptible to theft just like a radio? NOW THAT IS stupid!