I'm 18 and a new gun owner. As of now I have a pretty basic collection. One AR, one 870, a few .22s, the works. However, the obvious hurdle to owning a handgun is the federal restriction on purchasing a handgun from a licensed firearms dealer when you're under the age of 21. Buying a handgun from a private seller, however, is totally legal.
Sadly, that limits my options dramatically. I can't have a gun from a listing shipped to me since that would require an ffl transfer, so I am limited to sellers in my area. Even then, most of the listings I've seen in my area explicitly demand a HCP, which, being under 21, I can not obtain.
I'm aware for many people this is to protect themselves in the event the buyer is a criminal, but this comes off as really hostile to any 18-20 year olds who want to exercise their gun rights. If I can buy an AR easily I fail to see why it should be so difficult for me.