Yes, that's my experience but of course much depends on where you live and what your connections are.
I live here in south Surin amongst the poor uneducated iliiterate Khmers who are my b/f's family and village. What I always notice is that getting along with sisters & nieces is easier than with brothers & nephews even though I see the men now more often than the women. In particular the men who are not so close to my b/f (cousins, inlaws, uncles) will always lower their head when I'm around and not 'see' me. I interpret this as the usual problem of status: Not sure where I fit in the scheme of things, don't know whether to wai or wait for me to do so, and therefore best to ignore (which - given that I've had some 12 years of being around & paying regular (FIL & MIL) & irregular (health) bills for everyone - I find a little irritating.)
Even ignoring the language barrier, there's no possibility of having a conversation on any subject because they simply know nothing outside of the village & local agriculture ...