When it rains in Jakarta, it drizzles in the rest of the country.
It takes some time, esp. when there are different languages or dialects, but everything is being adopted.
Many things from Jakarta have never been adopted in Manado/Sulawesi Utara and will never be, especially when it comes to the language. Any Manadonese, living in our area, has his language deeply rooted. As well as religion it is part of his/her identity (you would often hear "
torang pe bahasa" with a loud emphasis on the first word) and influences from Jakarta is certainly not encouraged in the language field, if not rejected. Talking like a Jakartan doesn't make you look smart here, save perhaps in some very elitist circles. Quite the opposite in fact. Jakarta doesn't have the attraction for Manadonese it perhaps has for Indonesian from other parts of Indonesia.
We are yet to say
gue and
lo, for example despite being widely popularized by TV, sosmed, songs...etc nor it would come spontaneously to anyone's mind to call someone
mas or
mbak, even if they are Muslim. If, following Nimbus' OP, it was normal "Back in the 70's (probably even the 80's) [...] to refer to your household staff as 'babu' and 'jongos'" in Jakarta, if I ask my Minahasan wife, they are terms she obviously knows but terms she has never heard of in Manado for the 40+ years she has been living here.
To take an example from one of your posts,
arloji albeit not often used, is still very actual here as well as a plethora of other dutch words. People have just forgotten they are of dutch origin. We use
maar and
voor as you probably know, and it often amuses me to explain to Manadonese that the latter as nothing to do with the english "for" but as its origin back to the dutch. Many, especially among the youth, ignores it.
Despite the rain in Jakarta, it doesn't systematically mean drizzling here, especially when it comes to our language.
Even educated kids, like the one in my kids' school, barely speak Bahasa Indonesia properly. English, with the trend of ""all courses in English" schools has become their first language along with bahasa Manado.
This phenomena of calling maids
assisten is nothing really new (as in "just happening now"). We have had similar threads, specifically on
assisten vs
pembantu in the old forum a few years ago.
I very much agree witth Nimbus who said that in a decade or so Jakarta will call its maids 'household manager' or just 'manager'. Assisten is definitely NOT a
paten word and will change, well before that manadonese consider calling their pembantu "assisten"".