My FIL did a gun cleaning night when I was first taking his daughter out on dates. Had 3 guns disassembled on the kitchen table and let me know they’d be reassembled by the time I brought her home. He’s a really nice guy, but yes, that shit is “normal” in the US
Because administrative penalties are a thing. Your right to a jury trial only applies to crimes, and not everything is a crime. SCOTUS effectively ruled that if something could be a crime, even if you’re not being charged with a crime, the government can’t issue a non-criminal fine for it instead.