Look at your bodies, women! An internal inguinal canal less likely to cause a hernia, lower center of gravity, higher body fat, and less body hair for easier cleanup. God created you for spending long hours in the coal mines!
But look at how small and dexterous the children are, able to squeeze and clamber through the tunnels. And look at what they play all day: Minecraft. Clearly the children are best suited, as they yearn for the mines.