I did this when I was in Thailand and thought it was completely insane and wasteful. It's shocking people do this because they don't like the taste of their tap

I did this when I was in Thailand and thought it was completely insane and wasteful. It's shocking people do this because they don't like the taste of their tap water. Just purify it if you hate it that much? Also, the taste of any water pretty much disappears once you get used to it, so the thought of someone hating tap water is just absurd.