IF you can join the military, and go die in a foreign country, you should be able to do ANYTHING else, considered to be an adult activity. Including buying any ***, or consuming any type of *******. Now, having said that, I don't believe a 16 year old, should be allowed to drive, and the age should be raised to 18. If the age of consent is raised to 21 for all other activities...I'm fine with it, with the exception of operating a motor vehicle, I feel 18 is a fair age for that. I also feel that if the age of consent is to be kept at 18, then there needs to be a competency, or some type of maturity test given, to anyone entering into an area of consequence...i.e *** purchase, adult industry, etc.
As far as the girl in the picture, I would assume if they didn't go out of their way to make her look 15, by dressing her, and doing her hair and make-up as they always seem to do...and if she had at least, a little patch of pubes, she would look 18. A lot of that is clearly marketed to pedophiles...look at Little Lupe, and Little April's sites.