I started to reload when I was 16, before I had a drivers license even. In 1974, in California the laws were that I could not buy ammo for rifles until I was 18 and for pistols it was 21. Something similar to that, time erodes the memory. Anyhow, I could not buy .22 rimfire ammo, but at 16 I could buy all the primers, powder, bullets and empty cartridges I wanted. My next door neighbor got me started. He had an RCBS press that was out of production, an A1, I think and I bought a Rockchuker from RCBS as well as all the other equipment. For shotguns I had a MEC 600 jr.
The first cartridge I handloaded I had to make many changes, a .308win. I bought several hundred rounds of .308 military brass (7.62 NATO) from Traders in Oakland, Ca who may be closed now due to dozens (maybe 100's) of registration violations, I believe it was. Anyhow I had to buy a set of min spec dies from RCBS, the brass was so thick on the military stuff. I only had that problem on one rifle. I originally planned to use Dupont 3031 on the .308 with the military brass, but the chage on the chart over filled the brass, because of the cartrigde thickness and use of min. spec. dies. Good thing I had a patient tutor next door.
It always amazes me that I could not buy .22 ammo, but I could buy all the powders I wanted. The laws have changed.
I haven't handloaded in some time now, I just shoot a couple 30.06 rifles, a Remington 7400 and a Remington 700 and I can get great ammo off the shelf in that cartridge these days. Also, I don't shoot a case a week like I used to.
I really enjoyed handloading for many different cartrigdes while I did it, but there are way to many things I like to do.

I sold my handloading equipment to a good friend, fairly cheap and I gave my brother the MEC600 jr and he still uses it.