So, giving 18 year olds access to both guns and alcohol would be better?
Better solution would be if legal age for domestic gun ownership would be 70 to 80 or more while mild lagers would be available to 17 yo from every mall and coke-automat.
Drunken, underaged (less then 70yo) dudes on a street with illegal gun would be legal targets for seniors, and also some kind killing fee would be paid to proactive seniors. Youth would then get their drunk in peace.
That way also homicides would go down in longer term, while expectable average age of population would gradually increase.
Drunken, illegal usage of any guns would be strictly restricted to 80+ seniors with severe senility, and gerontological mental problems for keeping necessary minimum level of chaos in the society. They would be protected by law and sent to the 'survival of the fittest' -style TV-reality show. Centennials would get access to bazookas, and...
Uh... /Off topic