1.5 m will not help to prevent drowning of children which is a major cause of death in this age group in Thailand. On topics of Indians in the pool: I lives in The Base for 3 years, my apartment looking down on the inside pool. Frequented heavily by Indians, mainland male groups. Usually wearing some sorts of underpants or boxers, convenient. Swim and wash at the same time. They would usually jump into the pool, thrashing a lot of water and pretending some kind of freestyle swimming or -failing to keep the head above the ware - some apnea contests. Everything of course recorded by a mate and sent home to the village. Pathetic to watch. Anyhow: none of these guys had the slightest idea of swimming and would have immediately sank to the bottom of the pool, depth providing. But: each and every of these guys was absolutely convinced that he can swim and can pull this out when he jumped in the pool. Must be an Indian thing.