This in its own way is healthy if it's very noisy, and the reason is that small children come into the world with absolutely no control. They are utterly helpless. The only way they have of projecting their very limited power is through the objects they can call their own.
Esto es sano, aunque ruidoso, y la razón es que los niños pequeños llegan al mundo sin ningún control en absoluto. Son completamente indefensos. El único modo que tienen de proyectar su poder tan limitado es a través de los objetos que consideran propios.