Learning- children are very curious being
Learning-
children are very curious being, they begin to form their initial understanding of the world, and there are lots of questions forming in their mind, if a child has difficulty in language and communication, it will affect his/ her learning, he/she will not able to ask questions and find answers to further his/her knowledge.
Emotional-
Being unable to express themselves can be frustrating to children and it may affect their confidence and self-esteem.
Behaviour and social.-
Some children with difficulty in expressing themselves may be bullied then may develop Social Isolation, shyness, low self-esteem.
Ref:
The Impact of Speech on Social and Emotional Development
by Samantha Cardinali
https://www.speechbuddy.com/blog/uncategorized/speech-on-social-and-emotional-development/