Is it mandatory to hire influencers for social media campaigns?

[Brajet]

While it may not be compulsory opting for social media influencers, it is better and necessary for brands to have social media influencers. This will enable them to have more traffic, and in turn generate more revenue for their brands.

Social media campaigns may need to include influencers when other options barely work out. However, there is a need to check and research well before choosing the right influencers for the brands campaigns. What's your take?