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 Twitter feed or Google Analytics. There are solutions for all of these things, but the standard/easy way of doing these things means your user gets a third-party cookie, which means you need the banner.
Wrong. Functional cookies are exempt.
Say, a lawyer with the responsibility that all of our websites implement all of the relevant regulations?
You would think that they are up to date on what regulations you need to follow, but you'd be surprised. Many take a blanket "no risks under any circumstances" approach. These types can only be placated with the "we don't have any cookies at all" argument. And even then only barely.
GDPR never bothered to specify. This is why GDPR is broken and sadly it broke the web.
Also, I believe philosophically in trying to reduce things like analytics and tracking.