No one was supervising Rittenhouse the night of the shooting. The mere suggestion is beyond stupid...
Their are only a handful of 17 year olds in the US military. But, please, cite your source for "there are lots of soldiers who are 17"...
The law is pretty clear...
That's a pretty big "if", and it's not likely to happen, simply because the illegal possession of the weapon is pretty cut and dry. One needn't be Sherlock Holmes to determine that he obtained and possessed the weapon illegally.
Seriously, with regards to illegal possession, what the fuck is so confusing?
948.60  Possession of a dangerous weapon by a person under 18.
(2) (a) Any person under 18 years of age who possesses or goes armed with a dangerous weapon is guilty of a Class A misdemeanor.
https://docs.legis.wisconsin.gov/statutes/statutes/948/55
At the time, Kyle Rittenhouse was under the age of 18. That makes his possession of a firearm a misdemeanor. I see nothing unclear or confusing there...