To start off, my father just recently purchased a handgun. I am 20 years old, and have my FOID card. I wish to go to the range on my own, but we contacted our local police and they said "No, you must be 21 to be in possession of a handgun." I do not trust my local police due to a question I asked them a while ago, which they turned out to be wrong on. I CANNOT find anything that says you must be 21 to be in possession of a handgun in Illinois state law, in fact, I have found the complete opposite, saying you cannot be under 18 (under age of majority). There is a purchasing age on handguns in Illinois, which is 21, which doesn't fall under constitutional jurisdiction. My theory, and correct me if I'm wrong, is this; Age of majority in the United States is 18 (some states have their own, but Illinois is 18, and I believe federal age of majority is 18). Once you turn the age of majority, there can be nothing in the constitution withheld from you. So, theoretically I should be able to shoot on my own, since I am over 18 and have my FOID card. Can anyone give any insight into this? Am I correct in my assumption that I can shoot this handgun without my father, or someone over 21 and with a FOID card, being present? I seriously think my local police department don't want to deal with it, so they're flying by the seat of their pants. I will be contacting the State Police tomorrow to ask them, but if it does end up being 21, how is this legally possible? Everything I have learned thus far states that it's in violation of the 2nd amendment, to put an age limit other than the age of majority (at which point you legally become a citizen), on a right.