Recognition of alphabets commences at the age of –

Language development is a process that starts early in life by which children begin to understand and express feelings through language.

The child generally starts to recognize the alphabet at the age of 3 years as it is a later multiword stage in which a child:

• learns lots of new vocabulary quickly.
• asks many questions using short sentences.
• combines 4 to 6 words while speaking sentences.
• uses sentences to describe something or someone.

Hence, it could be concluded that recognition of the alphabet commences at the age of 3 years.