Umm, GFCI isn't an arcane thing, they've been around and required in bathrooms since the 70s [0]. People may not know the acronym, but they 100% are familiar with the outlets with the two little buttons that you sometimes have to reset. Local jurisdictions may have delayed adoption, so your city might not have required them right away but it was national code in 1975 for bathrooms.
They also don't have a circuit breaker built in, they perform a completely different function from a circuit breaker. And have been required in at least some portion of a property since the early 70s under the NEC, expanding over time to include anywhere where exposure to water is a possibility.
Even if we look at a super old version of the NEC, in 1965 I don't see anything that would prohibit installing an outlet near a toilet. I'm referencing a PDF of the 1965 version, but I don't have a shareable link.
I'm posting this not to shame you, but to point out that you have some misunderstandings of what is electrical code and so other members don't see your first confident statement and take it as fact. Plus, you can't tell if an outlet is GFCIs protected or not just by looking at it, even the very early ones could protect downstream outlets and at since the late 00's GFCIs combination breakers have been common. An outlet may look like a normal outlet and be GFCIs protected, I would wager that most of the kitchens you have been in have had GFCIs outlets.
[0] https://www.howtolookatahouse.com/Blog/Entries/2018/7/when-w...