@rando I think it's about body weight distribution and proportion. Look at little kids' head in relation to their bodies. They're like walking candy apples.
@rando Light people have an advantage.
I watched a series on Netflix with 100 athletes from different sports. The lightest, not necessarily the strongest were the winners.
I remember as a kid I could monkey bar with ease, it became 100X harder as an adult.
@rando It's also why on average women can dead hang longer than most men. They generally have less grip strength but the much lower bodyweight helps more than the increased strength.