Introducing food at the right age will make your child habituated with eating all kinds of food.
It is very important to maintain a balanced diet for the proper growth and development of the baby. Going gluten free or not is an individual's choice. It is better to look into the pros and cons before taking the decision.
Kids tend to skip chewing and try to swallow the food directly. Do not get angry, try to be patient and address the problem.
When a child is ready to eat food on its own, (s)he will give you signals. Look for the signals and you will know how to help your baby.
Gradual introduction of different foods leads to proper development in children.