I think there are degrees of this.
On the one hand, it's unreasonable to expect that you will have thousands of visitors every day to your blog. Some may get that, but most never will.
On the other hand, it's nice to get visitors that can pass the Voight-Kampff test. Googlebot, Bingbot, Yandexbot and that lot are cool and all, but it's somewhat discouraging when they are your only readership. I get writing for yourself is a thing, but then you might as well not put it online. The greatest part of the blogosphere is the exchange of ideas, the dialogue.
There is a serious discoverability problem in personal websites in general. Search engines and algorithmic content aggregators are part of the problem, but I think an understated part is that we've stopped linking to other websites.
It's like people think they need to trap the visitor on their site by having no exits and only promoting their own stuff. Feeling trapped is not a good feeling. What is a good feeling is discovering something cool, the experience of exploration feels good. We should treat our visitors to that.
Blog rolls, link lists, whatever you want to call it, they help your readers find more cool websites. That helps the blogosphere/indieweb/personal website-space in general. It also helps search engines find those websites and understand their importance better.
Linking is free, it's not a marriage proposal either. You can just link to something that you liked, because you liked it.