Buying an AR-15 without a driver’s license

I gotta admit that being epileptic I would never have a gun in the house, just as a matter of course. Legally, though, I could buy a gun just like any non-epileptic. It’s not like getting a driver’s license. I was allowed to keep my license but had to go through a year long probationary period to see if I was fit to drive. I was. Most epileptics lose their license. Some temporarily, some permanently. In some states I could not get a driver’s license. In most of those states, however, I could buy an AR-15. I’d just need a ride to the gun store.