What does "grow into his feet" mean in this context? Dear All, could you be so kind to tell if I understand the expression "grown into feet" in a right way. Here's the context: "He’d grown another inch since he’d left for college, and figured he’d topped out now at six-one. .... When he wheeled the first barrow out, he’d fallen into the rhythm, a nineteen-year-old boy who’d finally grown into his feet, leanly muscled in jeans and a work jacket, his boots mucked and muddy. " Excerpt from Nora Roberts book "Hideaway" Does it mean that "boy is a grown up man finally", or "he finally reached the height he desired," or maybe this expression has another meaning? I know that we usually buy children's clothing a size bigger so they will grow into them, but this meaning doesn't seem logical in this context. Huge thanks!