It's not really about the 20 Baht, but that it seems as though the advertised price is misleading. In the UK it tends to be the price you see is the price you pay.
I remember often seeing beer advertised as 99++ Baht in Bangkok.
Over the years I heard quite a few people say that they wouldn't go in a place if they saw "++" on their advertising board. In the UK we're used to 'the price you see is the price you pay'.
I know of an American guy who lives in Bangkok who admits to "slinging dope" (heroin) when he lived in Philadelpia. I've long suspected that people who get in trouble over illicit drugs in Thailand were involved in them in some way or other where they come from.
Back during the COVID (vaccine) years I heard some younger people state that they didn't want the vaccine cos they were choosey about what they put into their bodies. But I suspected not so choosey as to not buy (dodgy) drugs from dodgy people in nightclubs or on the street.
I believe that when we die we just go back to how we were before we were born, back to nothing.
Also, who would want to spend eternity (>trillions of years) with the human race anyway? Especially with some of the people who claim to be religious.