I wouldn't say that's many, we're talking 1/20 people. I am including children though, including some that were maybe 8 or 10 years old. Most unmasked children I saw were either luk-khreung (Eurasian or Thai-western), western or from other non-Thai backgrounds, such as Indian or Middle Eastern. Thais almost universally wore their masks, including very young children.
A lot of people didn't have masks on in the check-in line. They might have removed them because it was becoming hard to breathe, to later put them back on again (obviously I didn't stick around to check that! None of my business but I am assuming that's what people do).
I also noticed people leaving airport restaurants without putting a mask back on. My Thai friend and a mutual Dutch friend didn't put their masks back on after leaving the restaurant. I didn't wear one at all. I did walk out clenching my coffee cup, which I was sipping as there was still some leftover. My Thai friend then put her mask back on as we parted ways, before going into the toilet. Her husband had his mask on even while seated at the restaurant, and so did the Australian husband of our Dutch friend! I assume our female Dutch friend put her mask back on upon reaching security.
"We cannot let people come to Thailand and stay because it’s cheap. Hold your ground. Sell premium. The more expensive, the more customers. Otherwise, Louis Vuitton wouldn’t have any sales.”
The thing is, that when LV became well known, it already had the reputation of being luxurious. When Thailand became well known, it didn't have that reputation at all. That can't be suddenly changed and the way he looks at it is not how any of this works.
The only logic that came from him was about marijuana, let him get some function with that, but stay out of economics please.
Besides that, how is he going to legalize marijuana and in the same time expect quality tourists?