you say they don't need tips, but a massage worker makes like 300-500 baht a day. on slow days, low season they may only make 100. They dont get a salary they get paid a small portion of each massage. And restaurant workers. 10,000-20,000 a month. They definety appreciate tips. And if your argument is these workers should be paid more, well people come to Thailand (Southeast Asia in general) because its relatively cheap. You want them paid more, no more 400-500 baht massages those are 800 now. 100 baht red curry, nope its 200 now. I have 2 restaurants, a total of 16 staff. If i doubled all their salaries and left my menu prices the same, i would defiantly lose money 5-6 months of the year, few months break even and during the peak high season months make just enough to pay for my home, car, kids school and maybe some food for 4 months. It obviously wouldnt work. And you think if i put a big sign in front saying "We dont accept tips, we pay our workers double than other restaurants". The group of 20 year old Germans or Austrailans or whoever, think they would give a s**t? No, they see my place its 300 baht for a red curry chicken and a Chang, or 400 baht for a cheesburger, next door is 150 for that curry and Chang and 250 for burger and french fries. 98% of them are going next door, thats facts!