While I agree with your general point, it&#x27;s nature as well as nurture.<p>My first child who was (and is) a natural-born monkey whose idea of a good time at 18 months was leaping off a high platform to shimmy down a fireman&#x27;s pole.  Then we had our second child, who if anything had more freedom, more exposure to age-inappropriate toys&#x2F;environments, and less supervision than our first (can&#x27;t watch two kids as closely as one!)... and he&#x27;ll fall off anything he tries to climb.  And no, it&#x27;s not a medical issue or anything, they&#x27;re just not wired the same way.