Do not be too much worried about toilet trainig of you child and type and consistancy of stool .Too much of in take of liquid does not make stool soft It is myth .
Simple way is to keep your anxiety
down of pushing too much liquid and solid in the mouth of child every time and all the time .
growing children are very moody and they do not want to do want parents want them to do
.You have to learn to adjust with the child mood ;Change type of solid food stuff which may make stools soft
Please do not use laxative