Not long ago, the Bush administration declared the full personhood of the unborn for the purpose of health care benefits. Working from that president’s precedent, the model turned 18 nine months ago. And Dubya’s daughter wouldn’t have needed that fake ID.
If they’d have been covered, she wouldn’t be topless, now, would she? 
I know that this was meant tongue in cheek (or in other body parts), but I can’t pass up a relativity question.
Taking the legal definition, their frame of reference doesn’t matter. All that matters is the calender date according to the frame of reference of a person at rest on the surface of the Earth. You could not hasten this by putting the twins on the Concorde. However, if you put them on a plane travelling east to west, you could guarantee that they would be slightly biologically younger at the time that they become legal. Likewise, if you got on that New York-L.A. plane instead of them, then the time you would have to wait for their birthday would be less. If we’re restricting ourselves to travel near the surface of the Earth, then it’s difficult to do much better than keeping pace with the Sun (one circumnavigation per day). Alternatively, you could use a high-speed starship, which is not limited to the vicinity of the Earth, to achieve much greater effects. Putting them or yourself on the Space Station would be the last thing you’d want to do: It would cause them to age more than on Earth, or cause you to have to wait longer.
All of this, however, leaves the question of why any sane individual would want to get a head start on the Olsen twins. Some teenagers may be worth waiting for, but the Olsens aren’t them.
Amen to that. The Olsen twins? People say they can’t wait till the twin terrors are eighteen, and can do porn. But except for the lack of explicit sex scenes, can you tell the difference between an Olsen twin movie and a porno? MAYBE the set design is better in Parent Trap 7. Prolly not. The acting certainly isn’t.
Mary-Kate and Ashley look like how I imagine the six-legged KFC chickens. They always have and they always will.
I mean, come on. Kirsten Dunst is 20, and an uber-hottie to boot. Rrrrglllle!
jb
Eons ago(well decades) while underage, we were using Raoal who barely spoke English to buy us booze in college.
On my 21st birthday, the only person available to go with me to bar hop was Raoal, who at one point was carded and tossed out for being not quite 21, the legal age. Obviously after a few drinks a rather big arguement over this as I was positive he was 21 and that they were discriminating against him because of his national origin.
This outrageous incident of prejudice bothered me a lot until weeks later I recalled something I had read long before. In some cultures, age is based upon “birthdays” which would include the day of birth, so Raoal was younger than I, but viewed himself as 21 before me.
I never discussed this with him. Imagine, he may have been carded and refused several times trying to buy for us, but because of his age in his own mind and limited English, we didn’t know.