In Bangkok it's hard but not elsewhere. I booked both Bolt and Grab and then took the first one to turn up. Felt bad but I didnt want to miss a flight.
Oh dear. Let me explain then. Survey 1000 people out of millions you get a small margin of error say 3%. Same applies when talking to 200 farangs out of thousands.
So you don't need to talk to 80,000 people to figure out what the trends are.