1. Why doesn’t a two-year-old baby talk? Under normal circumstances, a two-year-old baby should have started talking. If your baby is still not talking by the age of two, then you need to consider whether there is a language delay. There are many reasons for this, including hearing problems, lack of stimulation in the family environment, abnormal intellectual development, etc. 2. How to determine whether a baby has language development delay? Parents can determine whether there is a language delay problem by observing the baby\’s behavior. For example, if a two-year-old child