This is lacking in most of the adult population, anyway, and yet is not a reason to disenfranchise them. I am not necessarily for lowering the voting age, but

This is lacking in most of the adult population, anyway, and yet is not a reason to disenfranchise them. I am not necessarily for lowering the voting age, but this argument is not great. There is nothing magical about being 18 years old, and you’re not suddenly smarter than a year ago. Same for being 21, or whichever threshold you want.