Taking things into perspective, what benefit does I, as an individual user will get when Chrome automatically logs me in the browser when I sign into my Google

Taking things into perspective, what benefit does I, as an individual user will get when Chrome automatically logs me in the browser when I sign into my Google account? Unless there's a compelling benefit for me as a consumer, then I think Google wasted a lot of engineering hours and talent building something that majority of people would want no part of.