Why are people still going out to clubs, beaches, casinos, bars with the coronavirus present?😮

Because they want to pretend things are back to normal, or that this is a “hoax” and simply “deep state” trying to restrict their personal freedom. All kinds of irrational conspiracy theories and there are any number of people selling such misinformation to the gullible. A little bit of information is dangerous and some people have latched onto the idea of “herd immunity”, taking things into their own hands by holding “Covid parties” or gatherings to deliberately infect each other.
It’s both ridiculous and tragic.