What is it with people judging on things that are not their business and is not harmful to other people?

For example, many people that I know that I told go to strip clubs, won't shut up how it is a waste of money, etc. It is good to give an opinion but to talk to the point of not shutting up, it is weird. I am single and it is not like I spend thousands of dollars constantly. Also I am not forcing you to go. If it doesn't affect anyone, why the fuck are you judging?

What is it with people judging on things that are not their business and is not harmful to other people?
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