No, I didn't take this movie, I'm not THAT old. Even my mom hadn't been born yet. This was posted at Thai-Visa [not sure if you need an id to get in there, probably just to comment] and I thought it worth sharing. When I was in Thailand in the 60s some of this was still going on. I don't remember women wearing this sort of sarong except for classical Thai dancing. Eating betel nut was still popular, but only by the older men and women - these women would have been in their 60s or 70s by then. I'm guessing the hostess must have been someone pretty high on the social scale (maybe royalty?) based on how low these women prostrate themselves when they 'wai'. Though when you are already sitting on the floor, the others have to get down pretty low to show proper respect. While I often was in situations where we were all on the floor like that, I wasn't with people that elegant.
Writing this post made me remember a short video of a breakfast on the floor with farmers in Chiang Mai in 2008. That would have been 89 years later. And a much less elegant, but more comfortable setting. You can see that video here just for a comparison. They're speaking Northern Thai dialect. I'm not sure why the photos have vanished.