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(while the age for rifle is federally 18...) Exceptions to this include if the gun is to be used for specified activities including employment, ranching, farming, target practice and hunting.
"
and
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For example, in Vermont it’s legal to sell a handgun or rifle to someone over 16.
In Maine, Alaska, Minnesota or New York State you can sell a rifle to someone over 16.
In Minnesota, as long as it’s not in the city, you can sell a rifle to a 14-year-old without parental consent.
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All you're doing is showing me there are restrictions are access to firearms and a plethora of enforcement/laws saying how younger kids can use them.
If your point is to say we don't need any restrictions on porn access you kinda failed.
Lastly, I don't think shooting a firearm for fun or hunting is at all equivalent to unrestricted access to porn that has proven to rewire young brains in a negative way.
" (while the age for rifle is federally 18...) Exceptions to this include if the gun is to be used for specified activities including employment, ranching, farming, target practice and hunting. "
and
" For example, in Vermont it’s legal to sell a handgun or rifle to someone over 16. In Maine, Alaska, Minnesota or New York State you can sell a rifle to someone over 16. In Minnesota, as long as it’s not in the city, you can sell a rifle to a 14-year-old without parental consent. "
Seems confirmed by ( https://giffords.org/lawcenter/state-laws/minimum-age-to-pur.... ):
" Age 14 or 15 and has a firearms safety certificate "