How can it be that all the human languages form logical grammar structures without anyone defining them from the first place?

Question

It seems like grammar rules just form up on their own and no language is a “mess”, how can it be?

In: Other

Answer 1

Time

You’ll note that not all languages follow the same grammar rules.  There is no default or base grammar in language.

Over time people come to understandings of effective communication and then standardize through spoken word / print mediums