Google AdSense is a banner advertising service offered by Google.
Its activation is recommended in case our site generates a fair amount of traffic. That is, when a fairly large number of users browse the pages of our site.
In this way, the user has the opportunity to click on the inserted banner ads. Obviously generating a proportional gain, based on the number of exposures of the advertisement, or clicks on the same.
A well-maintained and updated website is more likely to attract new users every day. And that, with Google AdSense, can mean monetization.
Of course, good positioning, and focusing on a particular target audience, also makes a difference.
In fact, users who visit my site, if they are truly interested in the pivotal topic of my online activity, will also be more incentivized to click on the various links they find along their browsing path.