It is important to know what typical sound development looks like. Below is an easy and quick chart that you can reference!
90% of Children Have Mastered These Sounds...By Age
p, d, m, w, h, n - 2 years old
t, b, k, g - 3 years old
f, v, y - 4 to 5 years old
s, z, j, l, r, sh, ch, th, blends - 5 to 7 years old
Now that you know what "typical sound mastery" looks like, the question is "When should I worry?"
Learning and developing speech and language skills is not easy. It is normal for young children to make mistakes when talking. These mistakes naturally correct themselves for most children. Some children continue to make errors beyond the age when other children have mastered those sounds.
It might be time to show concern/worry if you are observing one or more of the following:
1. Friends and family members are having difficulty understanding your child.
2. Your child demonstrates frustration and becomes upset because you don’t understand his/her speech.
3. Your child shows no signs of frustration when trying to communicate, but you do not understand his/her speech.