Not until she can
walk from room to room, pull her pants up & down & say " pee-pee", "poo-poo" or other words to indicate she senses the urge to "go.
" You can model using the toilet & let her sit on a potty chair if she wishes. She has learned the diaper
-changing routine & seems compliant, so she can learn to drink from an open-mouth cup, feed herself with a spoon, point to 3 body parts & 3 pictures in a book.