Well in my opinion we don't need gun controls because many don't follow the rules even if we put a law about gun control they will break it. They don't fear the law. 
Lots of bad people doesn't care about laws and they don't do what is right. but it doesn't mean that we should leave them and allow them what they are doing. this is like we are also indirectly supporting guns supply and terrorism.
Controlling guns nowadays is not easy but we can still control if if we all become one unit. unity gives strength.
Teach your child about this thing, we should start this mission from our home, lack of education and jobs is the biggest reason of this shit.