Toddlers are usually able to transition into solid food. However, there are exceptions due to anatomical issues and psychological barriers. Forcing them to eat through the mouth might only result in choking and other dangerous consequences. In this scenario, a toddler tube might be needed as a temporary feeding mechanism.
The tube can be inserted in different ways to bypass the problematic areas. For example, the food might go directly to the stomach or to the intestines. This allows the kids to get their nutrition without the hazards. It would be best to let an expert perform the operation to prevent infections.
This is only a temporary solution that provides time for doctors to treat the underlying issue. After a while, it should be possible for the toddler to transition to normal eating with the support of parents, doctors, and child psychologists.