There are too many factors involved here. For example, human languages are reinforced completely differently. From birth, you will hear from inside the womb o

There are too many factors involved here. For example, human languages are reinforced completely differently. From birth, you will hear from inside the womb often one language. Later, you hear and speak either a couple or more languages but generally in different contexts, e.g. mostly one with parents, maybe one or more with friends or strangers and one with school and media. The latter context is normally reinforced further with reading and writing, while the former rarely or not at all. I suspect, though without more studies it would be impossible to know, that it is the exclusively spoken languages that are most affected. The reading and writing languages, as well as being used in different contexts, are highly likely to be processed by the brain differently. In addition, almost all of these human language uses will be tied to life events and (strong) emotional feelings. So, the comparison to programming languages seems tenuous at best, especially since there are plenty of other contexts where one can misapply learned rule-sets in general. The word "language" is almost a misnomer across these two different fields, in my opinion.