I'm going to jump in here and say a few things, because I think they've been missed.
First of all, there is a big difference between Abby and Jessica leaving, and Mike and Zac doing this same thing. The boys were 17 at the time, not 16. That's a huge difference in many ways. Also, society, at least here in America, tends to be a bit more protective of girls than boys.
Second, I think the choice of boat was really poorly thought out. Open 40s are pure racing machines and most ARE NOT DESIGNED FOR SHORT-HANDED SAILING. If the boat had been a CLASS 40, which is specifically designed for solo racing, then it might have been a very different story. The problems with an OPEN 40 are many. They are not very seakindly boats—they're high performance, beamy, racing machines and the motion they have is pretty tough on most people. Liz Clark, of s/v Swell fame, says that her Cal 40 is a problem in heavy weather, and it is a far more conservative design than any OPEN 40 is.... The boat was too reliant on complex electronics—it couldn't be steered using a wind vane because the design, like many multihulls, causes problems for windvane self-steering and makes it less than reliable. The reliance on electricity and electronics was readily apparent when she aborted her first attempt and ended up in Cabo San Lucas.
Third, the timing of the trip was all wrong. She was sailing to a schedule, and doing so is stupid. She was supposed to leave in November originally. She didn't leave until January, but aborted that attempt and really didn't start until February. That put her THREE MONTHS behind schedule. She couldn't postpone because her birthday was forcing her departure date. STUPID. That's almost as bad as Ronnie Simpson leaving for his voyage based on making the evening newscast.
Fourth, Abby didn't have the experience with the boat. The Sunderlands bought Wild Eyes in October of 2009, just three months before Abby left. Granted, Abby helped sail the boat from NY to Florida IIRC. However, much of the time Wild Eyes was either being refitted, without much participation from Abby by all accounts I've seen, or being transported between Florida and California. So, exactly how much time did Abby have to sail on Wild Eyes alone? How much time did she have to learn the new systems on this highly complex and technical boat? By all accounts it was less than two months. Yeah, my point exactly. I'd point out that Jessica Watson was fully involved and in charge of refitting her S&S 34, Ella's Pink Lady. She chose the gear that she was going to use on her circumnavigation and spent most of a year refitting and sailing the boat according to the articles I've read. The difference in their experience and familiarity with the boats shows. Abby didn't know how to mount or use the backup antenna for the satellite phone... which is why she had to pull the trigger on the EPIRBs. She didn't know how to jury rig the boat.
Fifth, IMHO Abby didn't have that much sailing experience. While Jessica and Mike Perham have fairly well-documented sailing resumes, Zac and Abby do not. Jessica captained a 34' boat on a Tasman sea crossing of 1300 NM or so when she was 15. Mike soloed across the Atlantic in a 28' sailboat prior to his circumnavigation attempt. I haven't seen much of anything from a source other than the Sunderland family that Zac and Abby were both accomplished sailors for the most part. I'd point out that much of the reason Zac was successful in his circumnavigation is that his boat was far more seakindly, less reliant on electronics, his route was far easier, if longer, and he had far more experience with his boat and knew it far better than Abby knew Wild Eyes by all accounts.
While I wish Abby well, and am glad that she will be home safely soon... it is fairly telling that in her first interviews she came out whiny and did NOT MENTION all the people who had put their lives at risk to rescue her, especially the captain of the ship, who had actually fallen overboard in his attempt to help retrieve Ms. Sunderland, that actually picked her up.
I'd point out that according to some articles, the boat Wild Eyes cost almost $900,000 between its purchase price and the amount that went into refitting her. According to one article, Ella's Pink Lady cost a bit over $100,000 to purchase and outfit... Given how much money the Sunderlands have raised in sponsorship, I hope the rescuers send them a bill.