When I was a child, I could go to the local Western Auto store and drool over the rifles that were right there in floor-level racks for me to touch. I even bought and used a lot of .22 ammo.
But, legislators, governors, presidents, and judges have long disrespected the Second Amendment (2A), treating it as the red-headed stepchild of the Bill of Rights. As a result, reams of legislation and court decisions have arisen that have denied citizens their 2A rights one way or another.
Among these was the Gun Control Act of 1968, signed into law by Lyndon Johnson (D). That law, in addition to other things, created a dealer network, and prohibited dealer sales of long guns and their ammo to those under 18; and handguns and their ammo to those under 21. Dealers were required to keep a record of ammo sales. Being under 21, I could not buy pistol ammo. When I went to buy .22's, I had to state on the form that they were for a rifle.
That has always stuck in my craw.