It is generally not recommended to avoid treating or "patching" primary teeth if they are decayed or damaged. Primary teeth, also known as baby teeth, play an important role in a child's oral health and development. They help children speak and chew properly, and they also guide the permanent teeth into their proper positions.

If a primary tooth is decayed or damaged, it can cause pain, infection, and even affect the development of the permanent teeth. Untreated decay in primary teeth can also lead to more extensive and costly dental treatment in the future.

Therefore, it is important to take care of primary teeth and address any decay or damage as soon as possible. This may involve filling cavities, placing a dental crown, or even extracting the tooth in severe cases.

Regular dental check-ups and cleanings are also important for maintaining good oral health and preventing the need for extensive dental work in the future.