Shanks is 37. Shakky can't be around Shanks' age, she quit pirating before he was even born. You know, I think people are making a mistake here when they assume that when Shakky said that Garp chased her, she meant the relatively high-ranking Garp we know. Assuming Shakky is very well-preserved and is in her mid 70's, and Garp is in his mid-60's, then about 50 years ago, Garp would have been a young Navy recruit, and Shakky would have been a pirate in her 20's. Garp WAS chasing her, just not as the head of the crew, he was just a regular Marine. Then, about 10 years later, Garp was in his 20's, and had by then become in charge of his own crew, and Shakky was in her 30's, still a pirate, and Garp still chased her occasionally. Then she quit, and Garp went on to become a vice-admiral. My point: people are making way too big a deal of Shakky's age. Garp chased her as a teenager and a man in his early 20's, and now it's been 40 years and he's in his 60's, and Shakky's in her 70's. I think that explains everything fine.
As to expectations that Shakky was in Roger's crew, I flatly refuse to believe it. For one thing, she said she quit pirating about 40 years ago. Roger died 22 years ago, and was probably pirating for 3 or 4 years before that, so he started out around 25 years ago. Shakky was retired then. Also, I'm against every singe knowledgable character in One Piece having to be part of Roger's crew. Maybe she just met him when he passed the Sabaody Archipelago? Or maybe she never even met him in person? I find that last bit unlikely, but I thinkt he most reasonable explanation is that Shakky may have met with Roger when he went to Fishman Island, but that's it. Her days as a pirate are too far back for her to have been in Roger's crew. They are part of different eras of piracy.
