Chilindrina shows her feet in "la chilindrina en apuros"

there is one scene in the 1992 television film "la chilindrina en apuros" where chilindrina takes off her shoes,then when she takes off her socks,she only takes off only one. That makes her half-barefoot,so why didn't she take off the other sock? It doesn't make any sense. Can you explain to me why she did it. I wanted her to go fully barefoot,not half-barefoot.