Back in the early days of blogging, the tech press bashed RSS out of existence as it was supposedly too complex for ordinary users. To the point new bloggers don't even know what RSS is, some recent blogging platforms don't support RSS, and sometimes the blogs of new startups don't provide RSS feeds.
But if your blog doesn't have RSS, you shoot yourself in the foot.
You completely give up control of your traffic to search engines and social platforms. Along with email newsletters, RSS is among the handful of options remaining to bloggers for establishing a direct communication channel and relationship with readers. With no gatekeepers.
The readers who subscribe to your RSS feed always see all of your posts, no matter what Google, Facebook, or Twitter decide.
What if only a minority of readers subscribe to your RSS feed?
They are the ones you want. These readers are the superfans who share your work. They may be bloggers themselves and link to your posts from theirs, or enable other opportunities such as guest blogging or podcast interviews.
The few RSS subscribers are much more engaged and valuable than the many who don't even click links on social.