Earlier quoted context omitted.
Why avoid cookies entirely? You don't need a cookie banner for cookies essential to the functioning of your site.
You want to avoid cookies entirely so that you don't need a cookie policy and that you don't need a cookie banner. It's also significantly easier to convince a lawyer that you don't need these things if you can prove that there are no cookies whatsoever. And even then they'll be suspicious. It's harder than it looks, just embedding a YouTube video for example already sets third-party cookies. Same with embedding a Tw…
Wrong. Functional cookies are exempt.