All of these business politicians and individuals that are getting paranoid over 18-year-olds buying weapons and are changing their policy so you can't buy a weapon unless you are 21. How about this? How about you can't go in the military unless you are 21, because you might use your training to be part of a mass murder?
It really doesn't make any difference if you are 18 or 98; if you have a mental problems you shouldn't own a gun. What is happening is some people in our government are trying to take our guns, period. Just remember guns do not kill people do. My advice is read what Hitler did to control Germany, same same. Thank you.