User blog comment:D.Dragon123/Monkey D Gr/@comment-3986064-20110729101419/@comment-3986064-20110729110214

Roger might've been the one who thought him haki, or it might've been Garp and I also think that Kuma is part of his plan, maybe he collaborates with Dr Vegapunk as well...these are out of my speculation for now, I can't be sure, but I'm pretty sure that if Dragon was stronger than Luffy at his age, then THAT WOULD SUCK! You know why? I'll ask you a question then as the answer for the first one: Why is Luffy the main character and not Dragon(this needs no answer of course), well thats the same reason why I think Dragon also stopped his growth at some point, think about WB, think about Garp, as they got older, they got weaker...but if they continued to get stronger, what would've happened? no more piracy? no more marines maybe? no need for a new generation? something like that, everyone needs to hit a limit! and after a while they'll grow older and weaker, just like we grow in height! And at some point we stop and get smaller!XD