Sandra Bullock is just now potty training 3-year-old Louis

In Touch caught up with Oscar winner Sandra Bullock at the Oct. 1 premiere for her upcoming movie Gravity, which is garnering critical praise.
In addition to discussing her role in the upcoming movie, Bullock gave a glimpse into her personal life at home with adopted son Louis Bardo Bullock, 3.
Most troubling was Bullock’s revelation that she is just now getting around to potty training the toddler.

He’s “not pooping in the diaper anymore,” she said with pride.

Boys are usually late to potty train, but age three going on four — when a child is socially interacting with other children — is too late to delay potty training.
Child experts are in agreement that waiting too late to potty train your child can result in mental health and emotional problems later on in life.
Dr. Baruch Kushnir warns that delaying potty training exposes children to ridicule from other children — and even from adults.

Late potty training can not only hinder their development, it can cause them to be ashamed,” said Dr. Kushnir. “When a child is not completely potty trained by the age of four, he becomes an ‘exception’ and may suffer personal and social embarrassment and disappointments. He may also be exposed to unpleasant reactions from the social environment … and they may damage the child’s self-image and self-confidence and interfere with his developing personality.” Source

Child development experts suggest potty training your child before he enters a school environment. Or at least by age 2, when the child enters the anal stage of child development.
“A fixation at this [anal] stage can result in a personality that is too rigid or one that is too disordered,” according to Sigmund Freud.
The anal stage follows the oral stage (breast and bottle feeding) in an infant or child’s early development. Unsuccessful completion of potty training before a child has passed through the anal stage can lead to anally retentive personalities.