I was just observing this general effect is probably true, to some degree, big or small, for most languages. It's probably a little more pronounced in Japanese than English. In neither case is it anywhere distinct enough to call it a separate dialect for men and women.
> Most languages have far more obvious grammatical distinctions.
Grammatical gender like French or Arabic is pretty unusual, really. It's common in the Indo-European and Semitic languages, which are prominent by number of speakers, but grammatical gender is fairly rare when surveying the world's language families as a whole. It's completely absent from many of them. The whole Sino-Tibetan language family (including modern Chinese), for example. They get along fine with a single third person pronoun (in speech) and no grammatical gender.
But...that's gender, linguistically speaking.
[1] http://sites.la.utexas.edu/persian_online_resources/pronouns...
(Edit: reduced absoluteness, because lack of grammatical gender feature can be found in some Indo-European languages)
I can't speak for all Romance languages but my native Spanish: it's true that we have gendered nouns (most if not all of them, I think) but it has nothing to do with the speaker, so it's not a language for men or women. For example, a chair ("silla") is always female, regardless of whether it's me saying it (a male) or my mother. It's a bit like how ships in English are a "she" regardless of who's speaking, only more enforced and for all nouns.
The root "obrigad" sounds a lot like the English word "obligate". If this is more than just a coincidence, then a more direct translation is "I am obliged" rather than "thank you". Said this way it makes a lot of sense why the verb is determined by the speaker.
As an aside, I don't think Spanish has a word that's quite like "obliged". Maybe "endeudado", but that's just "in debt" and is not particularly about favors.
grammatical gender of a person == physical gender of that person
But compared to the differences in, e.g., Japanese that some people here are discussing, this seems rather minor.I am handsome.
I am beautiful.
I told my girlfriend she was handsome the other day and she objected strenuously.
https://english.stackexchange.com/questions/355908/why-is-ha...
Apparently not:
I did it myself: Eu fiz eu mesmo/Eu fiz eu mesma.
And most adjectives. Actually, "obrigado" is "obliged" so the phrase "much obliged" is equivalent to the Portuguese "muito obrigado".
English is at the de-grammarised end of the spectrum. There are gendered clues in English, but they're (mostly) not baked into the grammar. The differences are more about specific idioms and expressions that one gender is more likely to use, and they're really a kind of variation on other subgroup slangs - like teen slang, other age-related indicators.
Most languages have far more obvious grammatical distinctions. The Romance languages have obvious gender in the grammar, but it's... just there. It doesn't do much except to indicate that the subject or object is male or female. Beyond that, there are some rather random associations of gender to specific nouns.
Fully distinct dialects/languages are incredibly rare and are often artificial and/or more likely to be created by a subculture than as a direct result of gender differences.
Example: English has Polari, which was entertainer/street slang and often used in gay subcultures. It also has Cockney, Estuary, Northern, Scottish, Urban, and others - all differentiated by culture.