1. Well I think perhaps then we could reverse it and just see the lack of a regulatory body as a symptom of a culture that cares less about following strict linguistic rules. Compared to French, which also has a ton of slang and experimentation, but notably the power structures underlying the language care enough about maintaining a standard.

3. Loanwords are everywhere but I think they are easier to incorporate into everyday speech in English than in some other languages, especially ones with case endings. A word like taco, for example, has become indistinguishable from other “native” English words. Taco in say, Polish, requires more thinking about how it fits into the case system and what endings should be used. It’s a more complicated process than in English.