You should learn about gambling because you want to be a gambler. A person likes the subject that he feels and wants to busy himself on that. You should learn about gambling because you think it is possible to earn huge amount of income and it can make you rich in a short time. Actually gambling is a bad addiction and it can destroy a person very easily which the gambling addict may not feel in any way.  So I don't think learning a crypto user about gambling is important or needed. But a person who wants entertainment and can accept financial loss for fun can learn about gambling and gain gambling ideas.