Why is it that you have to be 21 to gamble?

The age requirement of 21 to gamble is primarily based on the belief that individuals at this age are more likely to make informed decisions and understand the risks involved in gambling. This age limit helps to protect younger individuals, who may be more susceptible to addiction and poor financial choices. Additionally, it aligns with the legal drinking age in many places, creating a consistent standard for activities associated with risk and responsibility.