I think we like to wash our feet cus In the past Thai people not wear shoes same as many tropical country. So we have to clean our feet before enter our houses. Nowsaday most of Thai houses still not allow to wear shoe inside cus we alway sit, sleep, sometime eat, on the floor. But as you will see we really love to wear slippers or anyshoes which can show our bare feet as much as we can cus of the weather. So our feet alway dirty with dust. That’s why we like to wash our feet when we back home.