if any are particularly interested, i read a book called "A Voyage for Mademen" that's about this very thing--sailing around the world. the first time it was done it was turned into a race. it's actually a somewhat recent thing; the first time someone did it was around 1965. the book also details the particular dangers people face while doing this sort of thing. having weather satellites certainly adds to the safety of the whole thing, but it's still very dangerous going around the horns of South America and Africa and just hitting general storms and waves. one person in the book didn't like to wear his safety harness when he was on deck because he felt it was too restricting. so granted, i don't sail and my knowledge comes from this book, but i do think that it's still pretty dangerous to sail around the world. despite not making it, i think this is still something she can be very proud of. making it i think matters a lot less than just going for it in the first place. i lean toward not letting my hypothetical 16 y/o daughter sail around the world, despite her experience. i'd prefer for her to wait until 18, but then i wonder about sponsorships, if she would have even been able to raise the money to do this if she were 18 and not 16 and trying to be the youngest person to do this. was someone really worried about her missing school? really? i can assure you with some degree of personal experience that she has gained a great deal of wisdom, maturity and introspection that she wouldn't have built in the same amount of time attending school. what i've gained from my own adventuring no time in school has ever replicated.