This matter, must listen to the child’s own.
Generally speaking, after the child says that he can go to the toilet and solve [personal problems] on the small toilet, he can say goodbye to diapers when he is almost 4 to 4.5 years old.
In this process, parents may encounter a rather bad thing: very not easy for the child to go to the toilet by himself, after the parents happily and rushed to take off the diapers for the child, the result was that the child began to urinate on his pants and bed again.
Therefore, in order to save trouble, you can give your child more time to wear diapers. Or, don’t wear diapers during the day, or put them on at night, and let your child say goodbye to diapers completely when your child’s ability to control defecation and urination is better.
In this way, Mom and Dad don’t have to wash the sheets all the time.