While most of the content you see is in Hindi and English, regional language content opens a completely new diaspora of viewers. Some of them are from old age and are more comfortable with their very language, others are just looking for content in their mother tongue as it keeps them more entertained rather than news like content in Hindi and English which they must put hard efforts to understand and imbibe. This particularly touches the people from the lower class, who are not too educated and find it difficult to type in the right keywords in Hindi and English as their list of words are limited.
Helps gain followers
When you post the content in your regional language, then there is an automatic connect with people of that region. Maybe how far we have reached in our lives, we are always finding fun in connecting back to our roots and these regional language content helps us find that space and something common to discuss with our friends and family which is exclusive to us. To get more engagement buy YouTube growth will helps you for your channel. Remember how we switch to our mother tongue when we have other foreigners around us and how much joy it brings to us. Similar joy comes to us when we find a famous YouTube content creator who could comprehend in our language and is from our community.
Helps people from lower class
Around 70% of people access YouTube on their mobile these days and most of them are people like an auto-rickshaw driver or house help, you like to watch the content that entertains them while they wait for the customer or having a break. These people were from backward class, have a limited set of words that they know in Hindi and English and are not appropriate to search the content they wish to look at. When you post contention their language, google search engine works very well to match the intent of their search and will show your content on the very top, people getting YouTube comments likes & dislikes for their videos.
Helps in advancing advertising budget
These YouTube videos in regional language are limited and hence people who are targeting the people from that region are very keen on placing their advertisement on that channel.
Regional YouTube channel has limited competition, hence, they reach heights very easily and gain many followers just for posting in that language. Here it will be right to say that content is not the utmost king, but the language is.