The most frequently asked questions I get tend to be about toileting training the child with ASD. The biggest quandry is knowing when to start the process. In many cases, you can’t use the typically developing child guidelines as these may not apply to a child with developmental delays. Although I have never found a study to confirm this, I feel that language development may be a factor in toilet training/readiness. The more limited the language skills are, the more delayed toilet training is. I am not saying, though, that a child with no verbal skills can’t be toilet trained. Both of my children were late talkers (almost 5 years of age) and both were late toilet trainers. My son was 9.5 years and my daughter 6 years old. They were both trained for uriniation earlier than that, at about age 4, but it was the bowel movement that was the hardest thing to train.