User blog comment:Digassmen/Unlikely son of Kaido/@comment-29391896-20200414140635/@comment-3185063-20200429095940

Big Mom already had a few children when she joined the Rocks crew, which includes Perospero, Katakuri, Daifuku and Oven. Kaido joined the crew as an apprentice and was probably around the same age as Shanks and Buggy when they were apprentices on Roger's crew.